《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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杂志简介

主办单位: 苏州混凝土水泥制品研究院
中国混凝土与水泥制品协会

主编 : 俞锋
常务副主编 : 王春蓉
刊期 : 月刊
电话 : 0512-68285716
E-mail : sccpitg@126.com
国内统一刊号(CN) : 32-1173/TU
国际标准刊号(ISSN) : 1000-4637
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混凝土研究

CNT/GO对高性能导电混凝土性能的影响研究

戴志辉，谈彬彬，朱敏涛

2025年第4期

摘要

引用本文

戴志辉,谈彬彬,朱敏涛.CNT/GO对高性能导电混凝土性能的影响研究[J].混凝土与水泥制品,2025(4):1-4,14. DAI Z H,TAN B B,ZHU M T.Study on the effect of CNT/GO on the properties of high-performance conductive concrete[J].China Concrete and Cement Products,2025(4):1-4,14.

正硅酸乙酯基防护剂对水泥砂浆吸水率的影响

王岩1，马川义2，秦宇1，张宁2，孙仁娟1

2025年第4期

摘要

引用本文

王岩,马川义,秦宇,等.正硅酸乙酯基防护剂对水泥砂浆吸水率的影响[J].混凝土与水泥制品,2025(4):5-9. WANG Yan, MA Chuanyi, QIN Yu,et al.Influence of ethyl orthosilicate based protective agent on the water absorption rate of cement mortar[J].China Concrete and Cement Products,2025(4):5-9.

隧道衬砌混凝土抗HCO3-腐蚀性能试验研究

袁江1，薛文飞1，傅鹤林2，任世玉2，*，闫高文1，刘汉宏3

2025年第4期

摘要

引用本文

袁江,薛文飞,傅鹤林,等.隧道衬砌混凝土抗HCO3-腐蚀性能试验研究[J].混凝土与水泥制品,2025(4):10-14. YUAN J,XUE W F,FU H L,et al.Experimental study on HCO3- corrosion resistance of tunnel lining concrete[J].China Concrete and Cement Products,2025(4):10-14.

超长大体积侧墙抗裂混凝土的制备及应用研究

黄小川，陶俊*，罗小东，时宇，高建

2025年第4期

摘要

引用本文

黄小川,陶俊,罗小东,等.超长大体积侧墙抗裂混凝土的制备及应用研究[J].混凝土与水泥制品,2025(4):15-19. HUANG X C,TAO J,LUO X D,et al.Research on preparation and application of crack resistant mass concrete for ultra long side walls[J].China Concrete and Cement Products,2025(4):15-19.

SAP内养护自密实混凝土的性能研究

贾雨晴1，苏有文1，*，文江2

2025年第4期

摘要

引用本文

贾雨晴,苏有文,文江.SAP内养护自密实混凝土的性能研究[J].混凝土与水泥制品,2025(4):20-24. JIA Y Q,SU Y W,WEN J.Study on the performance of SAP internal curing self-compacting concrete[J].China Concrete and Cement Products,2025(4):20-24.

耐热600 ℃混凝土的配合比设计及性能研究

顾青山，林喜华*，代理堃，谭松，黄桂超

2025年第4期

摘要

引用本文

顾青山,林喜华,代理堃,等.耐热600 ℃混凝土的配合比设计及性能研究[J].混凝土与水泥制品,2025(4):25-30. GU Q S,LIN X H,DAI L K,et al.Study on design and performance of heat-resistant concrete at 600 ℃[J].China Concrete and Cement Products,2025(4):2025(4):25-30.

不同种类导电相材料对混凝土性能的影响研究综述

赵邦渝，汪伟松，旷文涛，李正川，刘贵应，肖强，张万斌，刘保林，曹林卫，郑琨鹏*

2025年第4期

摘要

引用本文

赵邦渝,汪伟松,旷文涛,等.不同种类导电相材料对混凝土性能的影响研究综述[J].混凝土与水泥制品,2025(4):31-36,41. ZHAO B Y,WANG W S,KUANG W T,et al.A research review on the influence of different types of conductive phase materials on the properties of concrete[J].China Concrete and Cement Products,2025(4):31-36,41.

低温条件下自密实混凝土的性能研究

岳成军1，2，杨鲁1，2，谭盐宾1，2，王志勇1，2，王浩1，2，郑永杰1，2

2025年第4期

摘要

引用本文

岳成军,杨鲁,谭盐宾,等.低温条件下自密实混凝土的性能研究[J].混凝土与水泥制品,2025(4):37-41. UE C J,YANG L,TAN Y B,et al.Research on the performance of self-compacting concrete under low temperature conditions[J].China Concrete and Cement Products,2025(4):37-41.

水泥混凝土制品

基于BOTDA技术的微应变传感光缆监测PCCP内压试验

李涛1，宋涛1，李渊2，*，刘维彬3

2025年第4期

摘要

引用本文

摘要：为了研究单芯、四芯微应变传感光缆监测预应力钢筒混凝土管（PCCP）内压的效果，设计了基于布里渊光时域分析（BOTDA）技术的PCCP外缠光缆试验装置，测量了升压、降压过程中的布里渊频移及其变化量，并进行了管外壁形变测量的位置标定和重复性试验。结果表明：单芯、四芯微应变传感光缆的布里渊频移与管内压大小呈正相关关系；微应变传感光缆在不同位置测量同一形变具有高重复性，且测量结果灵敏度较高，无迟滞效应，能够有效监测PCCP内压变化情况。 Abstract: In order to study the effectiveness of single-core and four-core micro-strain sensing optical cables on monitoring the internal pressure of prestressed concrete cylinder pipe (PCCP), a PCCP wrapped optical cable test device based on Brillouin optical time domain analysis(BOTDA) technology was developed. The Brillouin frequency shift and its variation during the process of voltage boost and reduction were measured, and the position calibration and repeatability test of the outer wall deformation measurement for the pipe were carried out. The results show that the Brillouin frequency shift of single-core and four-core micro-strain sensing optical cables is positively correlated with the internal pressure. Micro-strain sensing optic cables have high repeatability in measuring the same deformation at different positions, and the measurement results have high sensitivity and no hysteresis effect, indicating that the optic cables can effectively monitor the changes in PCCP internal pressure.

李涛,宋涛,李渊,等.基于BOTDA技术的微应变传感光缆监测PCCP内压试验[J].混凝土与水泥制品,2025(4):42-48. LI T,SONG T,LI Y,et al.Micro-strain sensing optical cable monitoring PCCP internal pressure based on BOTDA technology[J].China Concrete and Cement Products,2025(4):42-48.

销钉式抗拔先张法预应力混凝土管桩抗拉性能试验研究

陈克伟1，2，陈春保1，张芳芳2

2025年第4期

摘要

引用本文

陈克伟，陈春保，张芳芳.销钉式抗拔先张法预应力混凝土管桩抗拉性能试验研究[J].混凝土与水泥制品,2025(4):49-53,59. CHEN K W,CHEN C B,ZHANG F F.Experimental study on tensile performance of pin-type anti-pull pretensioned spun concrete piles[J].China Concrete and Cement Products,2025(4):49-53,59.

纤维材料及制品

不同因素对UHPC流动性和力学性能的影响及机理分析

王永吉，全志平*，张富奎，朱小明，杨克诚，达龙

2025年第4期

摘要

引用本文

王永吉,全志平,张富奎,等.不同因素对UHPC流动性和力学性能的影响及机理分析[J].混凝土与水泥制品,2025(4):54-59. WANG Y J,QUAN Z P,ZHANG F K,et al.Influence and mechanism analysis of various factors on flowability and mechanical properties of UHPC[J].China Concrete and Cement Products,2025(4):54-59.

混杂纤维对护坦混凝土性能的影响及增强机理研究

李俊1，何代宇1，亓星1，陈剑2，赵珊德3，王培懿1，吴超1，李小波1

2025年第4期

摘要

引用本文

李俊,何代宇,亓星,等.混杂纤维对护坦混凝土性能的影响及增强机理研究[J].混凝土与水泥制品,2025(4):60-64. LI J,HE D Y,QI X,et al.Study on influence and reinforcement mechanism of hybrid fiber on performance of apron concrete[J].China Concrete and Cement Products,2025(4):60-64.

房建材料及制品

混凝土高温损伤对BFRP有效极限拉应变的影响

欧阳利军1，阚晨超1，刘卫东1，2，蒙圣荣2，*

2025年第4期

摘要

引用本文

欧阳利军,阚晨超,刘卫东,等.混凝土高温损伤对BFRP有效极限拉应变的影响[J].混凝土与水泥制品,2025(4):65-71. OUYANG L J,KAN C C,LIU W D,et al.Influence of high-temperature damage to concrete on effective ultimate tensile strain of BFRP[J].China Concrete and Cement Products,2025(4):65-71.

螺旋箍筋约束大直径钢筋浆锚搭接连接预制混凝土构件的受拉性能

李刚1，李继先1，靖立光1，朱张峰2，*，孟浩2

2025年第4期

摘要

引用本文

李刚,李继先,靖立光,等.螺旋箍筋约束大直径钢筋浆锚搭接连接预制混凝土构件的受拉性能[J].混凝土与水泥制品,2025(4):72-76. LI G,LI J X,JING L G,et al.Tensile properties of spiral-restrained grouting lapped connections of large diameter rebars for precast concrete components[J].China Concrete and Cement Products,2025(4):72-76.

检测及试验方法研究

基于回弹法的预制构件混凝土专用测强曲线研究

罗启灵1，2，3，汤高翔1，2，3，龙武剑1，2，3，*，韩露4，林海鹏4

2025年第3期

摘要

引用本文

摘要：设计制作了强度等级为C20、C30、C40、C50 的预制构件混凝土试块，测试了试块混凝土的7、14、28、60 d回弹强度和抗压强度，采用幂函数形式的回归模型建立了预制构件混凝土专用测强曲线方程，并计算了平均相对误差和相对标准差。结果表明：建立的专用测强曲线回归方程为fcu,ic=1.773 1Rm0.865 1，其平均相对误差为±0.3%，相对标准差为0.5%，满足相关规范要求，且适用于回弹法检测龄期为7 d的预制构件混凝土抗压强度预测。 Abstract: Prefabricated component concrete test blocks with strength grades of C20, C30, C40, and C50 were designed and manufactured. The rebound strength and compressive strength of the test blocks at 7 d, 14 d, 28 d, and 60 d were measured. A power function regression model was employed to develop a specialized strength measurement curve for prefabricated component concrete, and the average relative error and relative standard deviation were calculated. The results indicate that the regression equation for the established special strength measurement curve is fcu,ic=1.773 1Rm0.865 1, with an average relative error of ±0.3%, and a relative standard deviation of 0.5%. These findings meet the requirements of relevant specifications and are suitable for predicting the compressive strength of prefabricated component concrete using a rebound method for testing age of 7 days.

罗启灵,汤高翔,龙武剑,等.基于回弹法的预制构件混凝土专用测强曲线研究[J].混凝土与水泥制品,2025(3):77-80,85. LUO Q L,TANG G X,LONG W J,et al.Study on specialized strength measurement curve for prefabricated component concrete based on rebound method[J].China Concrete and Cement Products,2025(3):77-80,85.

节能降碳

污水环境下硫氧化细菌对不同表面粗糙度砂浆性能的影响

刘正祥1，荣辉2，*，刘鑫3，戴骁蒙3，刘德娥2，冯阳2，杨文亚1，许伟1，龙武剑4，罗启灵4，冯甘霖4

2025年第4期

摘要

引用本文

刘正祥,荣辉,刘鑫,等.污水环境下硫氧化细菌对不同表面粗糙度砂浆性能的影响[J].混凝土与水泥制品,2025(4):81-83,92. LIU Z X,RONG H,LIU X,et al.Effect of sulfur-oxidizing bacteria on performance of mortars with varying surface roughnesses in a sewage environment[J].China Concrete and Cement Products,2025(4):81-83,92.

机制砂和煤矸石陶粒对混凝土性能和微观结构的影响

李志强1，2，贺向阳1，*，朱赫1，张帅1

2025年第4期

摘要

引用本文

李志强,贺向阳,朱赫,等.机制砂和煤矸石陶粒对混凝土性能和微观结构的影响[J].混凝土与水泥制品,2025(4):84-87. LI Z Q,HE X Y,ZHU H,et al.The effects of manufactured sand and coal gangue ceramsite on performance and microstructure of concrete[J].China Concrete and Cement Products,2025(4):84-87.

基于图像处理技术的橡胶改性水泥砂浆性能研究

张济涛

2025年第4期

摘要

引用本文

张济涛.基于图像处理技术的橡胶改性水泥砂浆性能研究[J].混凝土与水泥制品,2025(4):88-92. ZHANG J T.Study on performance of rubber modified cement mortar based on image processing technology[J].China Concrete and Cement Products,2025(4):88-92.

基于响应面法的氯氧镁水泥固化淤泥性能研究

曹宽宽

2025年第4期

摘要

引用本文

植生混凝土胶凝材料的研究现状

田晓苏，阳黎，王宁*

2025年第4期

摘要

引用本文

田晓苏,阳黎,王宁.植生混凝土胶凝材料的研究现状[J].混凝土与水泥制品,2025(4):98-102. TIAN X S,YANG L,WANG N.Research progress of cementitious materials for planting concrete[J].China Concrete and Cement Products,2025(4):98-102.

高钛矿渣骨料对混凝土性能的影响

彭文彬，苟余江，张荣华*

2025年第4期

摘要

引用本文

彭文彬,苟余江,张荣华.高钛矿渣骨料对混凝土性能的影响[J].混凝土与水泥制品,2025(4):103-108. PENG W B,GOU Y J,ZHANG R H.The influence of high titanium slag aggregate on the performance of concrete[J].China Concrete and Cement Products,2025(4):103-108.

基于正交试验的掺铁尾矿砂水泥基材料性能研究

闵柯，王玲玲

2025年第4期

摘要

引用本文

闵柯,王玲玲.基于正交试验的掺铁尾矿砂水泥基材料性能研究[J].混凝土与水泥制品,2025(4):109-112. MIN K,WANG L L.Study on the properties of cement-based materials with iron tailings sand based on orthogonal test[J].China Concrete and Cement Products,2025(4):109-112.

废弃塑料骨料对混凝土性能的影响研究

王姣

2025年第4期

摘要

引用本文

王姣.废弃塑料骨料对混凝土性能的影响研究[J].混凝土与水泥制品,2025(4):113-116. WANG J.Study on the effect of waste plastics aggregates on the performance of concrete[J].China Concrete and Cement Products,2025(4):113-116.

新能源水泥基材料

钢纤维对海上风电灌浆料及灌浆连接段模型性能的影响研究

杨医博1，2，丁成1，戚玉亮3，蔡慧妍1，黄梓铭1，黄华开1，郭文瑛1，王恒昌1

2024年第10期

摘要

引用本文

摘要：开展了不同体积掺量的钢纤维对海上风电灌浆料以及小型灌浆连接段模型力学性能影响的研究。结果表明：当钢纤维掺量为1.0%时，能在保障灌浆料工作性和微膨胀性能的基础上，灌浆料的28 d抗折强度和抗压强度相较于未掺钢纤维时分别提高了65.4%和31.0%，且灌浆连接段模型的极限承载力和极限位移分别提高了12.0%和15.5%，有效提高了灌浆料的延性；灌浆连接段模型在轴心荷载作用下，主要受力和变形部位为内筒上部剪力键和外筒下部，在今后的灌浆连接段设计中，可对该部位进行适当加强，以便充分发挥灌浆连接段的整体性能。 Abstract: The influence of different volume content of steel fiber on the mechanical properties of offshore wind power grouting material and small grouting connection section model was studied. The results show that when the steel fiber content is 1.0%, the 28 d flexural strength and compressive strength of the grouting material can be increased by 65.4% and 31.0%, respectively, compared to the group without steel fiber, while ensuring the workability and micro expansion performance of the grouting material, and the ultimate bearing capacity and ultimate displacement of the grouting connection section model are improved by 12.0% and 15.5% respectively, which can effectively improve the ductility of the grouting material. Under the action of axial load, the main force and deformation parts are the shear bond of the upper part of the inner cylinder and the lower part of the outer cylinder. In the future grouting connection section design, this part can be appropriately strengthened to give full play to the overall performance of the grouting connection section.

杨医博,丁成,戚玉亮,等.钢纤维对海上风电灌浆料及灌浆连接段模型性能的影响研究[J].混凝土与水泥制品,2024(10):1-6,17. YANG Y B,DING C,QI Y L,et al.Study on the influence of steel fiber on the performance of offshore wind power grouting material and grouting connection section model[J].China Concrete and Cement Products,2024(10):1-6,17.

超高性能风电灌浆料的制备与性能试验研究

庞伟琪1，张宁1，汤瑜1，秦广圣1，王长剑1，逄鲁峰2，白亚坤1

2024年第10期

摘要

引用本文

摘要：制备了一种超高性能风电灌浆料，通过L16（44）正交试验研究了矿粉、石膏、硅灰、微珠对灌浆料性能的影响，并通过单因素试验研究了膨胀剂和缓凝剂对灌浆料性能的影响，确定了灌浆料的最佳配合比。结果表明：灌浆料的最佳配合比为水泥50%、矿粉2%、石膏3%、硅灰3%、微珠2%；粒径为0.125~0.212、0.212~0.425、0.425~0.850 mm石英砂占比分别为17%、11%、12%，减水剂掺量0.35%，消泡剂掺量0.03%，塑性膨胀剂掺量0.02%，SG掺量0.01%；工程应用表明，灌浆料的各项性能测试结果均满足施工要求，现场施工流动性良好，28 d抗折、抗压强度分别可达22.5 MPa、129.50 MPa，3 h膨胀率、3 h与24 h膨胀率之差分别为0.51%、0.20%。 Abstract: A ultra-high performance wind power grouting material was prepared, and the effects of mineral powder, gypsum, silica fume, and microbeads on the performance of the grouting material were studied through L16(44) orthogonal experiments. The effects of expansion agent and retarder on the performance of the grouting material were studied through single factor experiments, and the optimal mix proportion of the grouting material was determined. The results indicate that the optimal mix proportion for grouting material is 50% content of cement, 2% content of mineral powder, 3% content of gypsum, 3% content of silica fume, and 2% content of microbeads. The proportions of 0.125~0.212 mm, 0.212~0.425 mm, and 0.425~0.850 mm quartz sand are 17%, 11%, and 12%, respectively, water reducing agent content is 0.35%, defoamer content is 0.03%, plastic expansion agent content is 0.02%, and SG content is 0.01%. Engineering applications show that the performance test results of grouting materials meet the construction requirements, and the on-site construction fluidity is good. The 28 d flexural and compressive strength can reach 22.5 MPa and 129.50 MPa, respectively. The 3 h expansion rate and the difference between the 3 h and 24 h expansion rates are 0.51% and 0.20%, respectively.

庞伟琪,张宁,汤瑜,等.超高性能风电灌浆料的制备与性能试验研究[J].混凝土与水泥制品,2024(10):7-11,17. PANG W Q,ZHANG N,TANG Y,et al.Experimental study on preparation and performance of ultra-high performance wind power grouting material[J].China Concrete and Cement Products,2024(10):7-11,17.

海上风电塔筒用超高性能灌浆料的制备及性能研究

李庆超，李伟，吉飞，王可汗，孔祥法，郑春扬

2024年第10期

摘要

引用本文

摘要：研究了硅灰掺量、石英砂级配、胶砂比、水胶比、外加剂掺量对海上风电塔筒用超高性能灌浆料工作性和力学性能的影响，并确定了最佳配合比。结果表明：灌浆料的最佳配合比为水胶比0.22、胶砂比1.0、石英砂级配m2.00~0.60 mm∶m0.60~0.28 mm∶m0.28~0.10 mm=54∶23∶23、硅灰掺量6%、复合膨胀剂掺量6%、消泡剂掺量0.10%、塑性膨胀剂掺量0.03%；在最佳配合比下，灌浆料的初始流动度为340 mm，30 min流动度为320 mm，1 d抗压强度为68.7 MPa，3 d抗压强度为94.2 MPa，28 d抗压强度为132.9 MPa，3 h竖向膨胀率为0.23%，24 h竖向膨胀率为0.27%。 Abstract: The effects of silica fume content, quartz sand gradation, cement sand ratio, water binder ratio, and admixture content on the workability and mechanical properties of ultra high performance grouting materials for offshore wind turbine tower were studied, and the optimal mix proportion was determined. The results show that the optimal mix proportion of grouting material is water binder ratio of 0.22, cement sand ratio of 1.0, the quartz sand grading is m2.00~0.60 mm∶ m0.60~0.28 mm∶m0.28~0.10 mm=54∶23∶23, silicon fume content of 6%, composite expansion agent content of 6%, defoamer content of 0.10%, plastic expansion agent content of 0.03%. At the optimal mix proportion, the initial flowability of the grouting material is 340 mm, the flowability at 30 min is 320 mm, the compressive strength at 1 d is 68.7 MPa, the compressive strength at 3 d is 94.2 MPa, the compressive strength at 28 d is 132.9 MPa, the vertical expansion rate at 3 h is 0.23%, and the vertical expansion rate at 24 h is 0.27%.

李庆超,李伟,吉飞,等.海上风电塔筒用超高性能灌浆料的制备及性能研究[J].混凝土与水泥制品,2024(10):12-17. LI Q C,LI W,JI F,et al.Study on preparation and performance of ultra high performance grouting materials for offshore wind turbine tower[J].China Concrete and Cement Products,2024(10):12-17.

负温环境下风电混塔拼接胶搅拌阻力、体积稳定性研究

李博洋1a，1b，吴香国1a，1b，2，*，张明熠3，4，周瑞权3，4，刘忠岩1a，1b，*,王学振5，王建福6，罗仕刚7，单韧8

2024年第10期

摘要

引用本文

摘要：节段胶拼技术随着预制装配式塔筒的发展，在风电混塔领域得到了广泛应用，且负温环境的混塔拼接缝的施工性能至关重要。研究了不同环氧树脂与固化剂含量比的环氧胶黏剂在负温（-5 ℃）环境下的施工性能，并提出了环氧胶黏剂搅拌阻力、体积稳定性的评价方法。结果表明：-5 ℃负温环境下，环氧胶黏剂具有较好的无约束线性收缩率，但搅拌阻力会有所增加。 Abstract: With the development of prefabricated tower structures, segmental splicing technology has made rapid progress in the field of wind power hybrid towers. The construction performance of hybrid tower splicing joints in negative temperature environments is crucial. The construction performance of epoxy adhesives with different ratios of epoxy resin to solidification agent content was studied under negative temperature(-5 ℃) environment, and evaluation methods for mixing resistance and volume stability of epoxy adhesives were proposed. The results show that the epoxy adhesive has a good unconstrained linear shrinkage rate in a negative temperature environment of -5 ℃, but the mixing resistance will increase.

李博洋,吴香国,张明熠,等.负温环境下风电混塔拼接胶搅拌阻力、体积稳定性研究[J].混凝土与水泥制品,2024(10):18-22. LI B Y,WU X G,ZHANG M Y,et al.Research on the mixing resistance and volume stability of splicing adhesive for wind power hybrid tower at low temperature[J].China Concrete and Cement Products,2024(10):18-22.

负温下风电混塔拼接胶的抗流挂性能和可工作时间研究

李博洋1a，1b，吴香国1a，1b，2，*，张明熠3，4，周瑞权3，4，刘忠岩1a，1b，*，王学振5，王建福6，罗仕刚7，单韧8

2024年第10期

摘要

引用本文

摘要：总结了结构拼接胶的研究现状，对比了现有相关标准对结构拼接胶的技术要求差异，研究了负温（-5 ℃）环境下4种风电混塔结构用拼接胶的抗流挂性能和可工作时间。结果表明：4种结构拼接胶在负温环境下的抗流挂性能均较好，可工作时间与流挂长度成正比关系；当环境温度高于结构拼接胶的适用温度时，会加快固化速率，缩短可工作时间，容易导致节段拼接性能有所损失甚至失效；当环境温度低于结构拼接胶的适用温度时，会减缓固化速率甚至不固化，影响施工进程，也易使节段发生硬接触而破坏；应结合风电混塔的实际施工环境条件选用合适的结构拼接胶。 Abstract: The research status of structural splicing adhesives was summarized, and the differences in technical requirements for structural splicing adhesives in existing relevant standards were compared. The anti-sagging performance and working time of four types of splicing adhesives used in wind power hybrid tower structures under negative temperature (-5 ℃) environment were studied. The results show that the anti-sagging performance of the four types of structural splicing adhesives is good in negative temperature environments, and the working time is proportional to the sagging length. When the ambient temperature is higher than the applicable temperature of structural splicing adhesive, it will accelerate the curing rate, shorten the working time, and easily lead to loss or even failure of segment splicing performance. When the ambient temperature is lower than the applicable temperature of structural splicing adhesive, it will slow down the curing rate or even not cure, affect the construction process, and easily cause hard contact and damage to the section. Suitable structural splicing adhesive should be selected based on the actual construction environment conditions of wind power hybrid towers.

李博洋,吴香国,张明熠,等.负温下风电混塔拼接胶的抗流挂性能和可工作时间研究[J].混凝土与水泥制品,2024(10):23-26,33. LI B Y,WU X G,ZHANG M Y,et al.Study on anti-sagging performance and working time of wind power hybrid tower splicing adhesive under negative temperature[J].China Concrete and Cement Products,2024(10):23-26,33.

横向拼接缝胶结缺陷对混塔极限状态受力特性的影响分析

张宇豪1，2，吴香国1，3a，3b，*，张明熠4，5，高朝利2，周瑞权4，5，李博洋3a，3b，*

2024年第10期

摘要

引用本文

张宇豪,吴香国,张明熠,等.横向拼接缝胶结缺陷对混塔极限状态受力特性的影响分析[J].混凝土与水泥制品,2024(10):27-33. ZHANG Y H,WU X G,ZHANG M Y,et al.Analysis of the influence of transverse joint bonding imperfections on the ultimate state loading behaviors of hybrid towers[J].China Concrete and Cement Products,2024(10):27-33.

陆上风电混塔结构HSC/UHPC方案受力性能对比分析

高鑫1，2a，2b，吴香国2a，2b，3，*，朱宏兵1，于凯1，李博洋2a，2b，*

2024年第10期

摘要

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摘要：传统的高强混凝土（HSC）和超高性能混凝土（UHPC）均可作为大型陆上风电混塔的主要结构材料，为进一步了解两种结构材料对混塔性能的影响，提出了HSC结构和UHPC结构混塔方案，并对比分析了两种结构混塔的受力特性和固有频率。结果表明：HSC结构和UHPC结构混塔在ULS（承载力极限状态）下的受弯承载力相差不大，但在SLS（正常使用极限状态）下的主压应力和FLS（疲劳极限状态）下的疲劳累计损失相差较大；HSC结构混塔的固有频率较高，超出了主机限值规定，需要采取额外的控制措施，而UHPC结构混塔的固有频率满足限值要求。 Abstract: The traditional high strength concrete (HSC) and ultra-high performance concrete (UHPC) can both be used as the main structural materials of hybrid towers for large-scale onshore wind turbine. In order to further investigate the influence of the two structural materials on the performance of hybrid towers, the schemes for hybrid towers of HSC structure and UHPC structure were put forward, and the stress characteristics and intrinsic frequency of hybrid towers of the two structures was comparatively analyzed. The results show that, there is a small difference between the ultimate bending bearing capacity of HSC structure and UHPC structure hybrid towers under ULS(ultimate limit state), but there is a significant difference between the main compressive stress under SLS(serviceability limit state) and the fatigue cumulative loss under FLS(fatigue limit state). The natural frequency of the HSC structure hybrid tower is higher, which exceeds the host limit regulations and requires additional control measures, while the natural frequency of the hybrid tower of UHPC structure meets the limit requirements.

高鑫,吴香国,朱宏兵,等.陆上风电混塔结构HSC/UHPC方案受力性能对比分析[J].混凝土与水泥制品,2024(10):34-39. GAO X,WU X G,ZHU H B,et al.Comparison analysis of stress performance of HSC/UHPC scheme for onshore wind turbine hybrid towers structure[J].China Concrete and Cement Products,2024(10):34-39.

西北地区强腐蚀环境高耐久性纤维增强混凝土技术研究

庞安宇，刘向坤*，张伟

2024年第10期

摘要

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摘要：针对西北地区核电工程恶劣环境，采用镁质抗蚀增强剂、水化热抑制剂、高性能复合矿物掺合料等制备了聚丙烯纤维增强C40高性能混凝土，研究了镁质抗蚀增强剂和水化热抑制剂对混凝土的工作性、力学性能和耐久性能的影响，并基于试验结果对纤维的最佳掺量进行了优选。结果表明：掺加水化热抑制剂和镁质抗蚀增强剂的混凝土具有良好的工作性，掺入不同掺量的纤维，混凝土的出机坍落度仍保持在160 mm以上，含气量在2.7%～4.2%之间；掺加水化热抑制剂和镁质抗蚀增强剂，混凝土的3 d抗压强度降低，7 d、28 d抗压强度提高，而随着纤维掺量的增加，混凝土的抗压强度提高；水化热抑制剂和镁质抗蚀增强剂的掺入可有效提高混凝土的抗氯离子渗透性能，掺入适量纤维可显著提高混凝土的抗氯离子渗透性能；水化热抑制剂和镁质抗蚀增强剂的掺入可提高混凝土的抗硫酸盐侵蚀性能，适量纤维的掺入也可提高混凝土的抗硫酸盐侵蚀性能；综合考虑工作性、力学性能和耐久性能，纤维推荐掺量为1.0 kg/m3。 Abstract: In response to the harsh environment of nuclear power projects in the northwest region, polypropylene fiber reinforced C40 high performance concrete was prepared using magnesium based corrosion inhibitors, hydration heat inhibitors, high-performance composite mineral admixtures, etc. The effects of magnesium based corrosion inhibitors and hydration heat inhibitors on the workability, mechanical properties, and durability of concrete were studied, and the optimal fiber content was selected based on experimental results. The results show that the concrete with hydration heat inhibitor and magnesium corrosion inhibitor has good workability. When different contents of fibers are added, the slump of the concrete remains above 160 mm and the air content is between 2.7% and 4.2%. The addition of hydration heat inhibitor and magnesium based corrosion inhibitor reduces the compressive strength of concrete at 3 d, increases the compressive strength at 7 d and 28 d. With the increase of fiber content, the compressive strength of concrete increases. The addition of hydration heat inhibitors and magnesium based corrosion inhibitors can effectively improve the chloride ion penetration resistance of concrete, and the addition of appropriate contents of fibers can significantly enhance the chloride ion penetration resistance of concrete. The addition of hydration heat inhibitors and magnesium based corrosion inhibitors can improve the sulfate resistance of concrete, and the addition of appropriate contents of fibers can also enhance the sulfate resistance of concrete. Taking into account workability, mechanical properties, and durability, the recommended fiber content is 1.0 kg/m3.

庞安宇,刘向坤,张伟.西北地区强腐蚀环境高耐久性纤维增强混凝土技术研究[J].混凝土与水泥制品,2024(10):40-43,48. PANG A Y,LIU X K,ZHANG W.Study on high durability fiber reinforced concrete technology in strong corrosion environment in Northwest China[J].China Concrete and Cement Products,2024(10):40-43,48.

耐高温水泥基快中子屏蔽材料的制备与性能研究

李圆圆，吴莹，潘小强，刘廷伟

2024年第10期

摘要

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摘要：以氢氧化铝、碳化硼、铝酸盐水泥等为原材料，采用压制方法制备了高氢含量快中子屏蔽材料，研究了该屏蔽材料的密度、力学性能、耐高温性能、尺寸稳定性、屏蔽性能。结果表明：虽然密度不高，但所制备的屏蔽材料具有较好的力学性能、耐高温性能、尺寸稳定性好、屏蔽性能好，且成本低廉，具有较好的应用前景。 Abstract: A high hydrogen content fast neutron shielding material was prepared by pressing aluminum hydroxide, boron carbide, aluminate cement and other raw materials. The density, mechanical properties, high temperature resistance, dimensional stability, and shielding performance of the shielding material were studied. The results show that although the density of the prepared shielding material is not high, it has good mechanical properties, high temperature resistance, good dimensional stability, good shielding performance, and low cost, with good application prospects.

李圆圆,吴莹,潘小强,等.耐高温水泥基快中子屏蔽材料的制备与性能研究[J].混凝土与水泥制品,2024(10):44-48. LI Y Y,WU Y,PAN X Q,et al.Study on preparation and properties of high temperature resistant cement-based fast neutron shielding materials[J].China Concrete and Cement Products,2024(10):44-48.

核电工程用铁铝酸盐水泥高性能混凝土生产工艺研究

王宇平，高铀，邱开建，刘向坤*

2024年第10期

摘要

引用本文

摘要：基于铁铝酸盐水泥的性能特点，设计了强度等级为C35的铁铝酸盐水泥混凝土，并研究了混凝土搅拌时间、投料顺序对其工作性、抗压强度的影响。结果表明：随着搅拌时间的增加，混凝土的出机坍落度和出机扩展度均呈先增后降的趋势，各龄期抗压强度基本呈先增后降的趋势，且变化幅度较小；采用T1投料顺序生产的混凝土工作性、抗压强度较优；综合考虑工作性和抗压强度，建议C35铁铝酸盐水泥混凝土的搅拌时间为60 s，投料顺序为：碎石→砂→水泥（含粉煤灰）→水（含外加剂）。 Abstract: Based on the performance characteristics of ferro aluminate cement, ferro aluminate cement concrete with strength grade of C35 was designed, and the effects of mixing time and feeding sequence of concrete on its workability and compressive strength were studied. The results show that with the increase of mixing time, the slump and expansion of concrete show a trend of first increasing and then decreasing, and the compressive strength of each age shows a trend of first increasing and then decreasing basically, with a relatively small change amplitude. The concrete produced using T1 feeding sequence has better workability and compressive strength. Considering both workability and compressive strength, it is recommended that the mixing time for C35 ferro aluminate cement concrete is 60 s, and the feeding sequence is: gravel→sand→cement(including fly ash)→water(including admixtures).

王宇平,高铀,邱开建,等.核电工程用铁铝酸盐水泥高性能混凝土生产工艺研究[J].混凝土与水泥制品,2024(10):49-52. WANG Yuping, GAO You, QIU Kaijian,et al.Study on production technology of high performance concrete with ferro aluminate cement in nuclear power engineering[J].China Concrete and Cement Products,2024(10):49-52.

材性研究

高低温环境下混凝土有机-无机复合抗裂养护剂的制备及性能研究

吉久发1，叶梦煊2，曹志国1，谷雷雷1，王倩倩2，*

2024年第12期

摘要

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摘要：制备了适用于高低温环境的混凝土有机-无机复合抗裂养护剂（OICCA养护剂），研究了其对混凝土保水性能、力学性能及耐久性能的影响，并与两种市售养护剂（E-201、TSD）进行了对比，分析了其作用机理。结果表明：在40 ℃高温和-8 ℃低温环境下，与未涂覆养护剂的空白组相比，涂覆OICCA养护剂试件的抗裂性能显著提高；涂覆养护剂有效提高了混凝土的保水性能、力学性能及耐久性能；与E-201、TSD养护剂相比，OICCA养护剂的养护效果总体上相对较好；OICCA养护剂中的有机组分能使其成膜效果较好，无机组分能与水泥水化产物反应生成结晶物质密实孔隙，二者协同作用提升了混凝土的性能。 A concrete organic-inorganic composite anti-cracking curing agent(OICCA curing agent) suitable for high and low temperature environments was prepared. Its effects on the water retention, mechanical properties, and durability of concrete were studied, and compared with two commercially available curing agents(E-201, TSD) to analyze their mechanisms of action. The results show that under high temperature of 40 ℃ and low temperature of -8 ℃, compared with the blank group without coating curing agent, the crack resistance of OICCA curing agent coated specimens is significantly improved. The application of curing agents effectively improves the water retention, mechanical properties, and durability of concrete. Compared with E-201 and TSD curing agents, OICCA curing agent has a relatively better overall curing effect. The organic components in OICCA curing agent can achieve better film-forming effect, while the inorganic components can react with cement hydration products to form crystalline substances and compact pores. The synergistic effect of the two enhances the performance of concrete.

吉久发,叶梦煊,曹志国,等.高低温环境下混凝土有机-无机复合抗裂养护剂的制备及性能研究[J].混凝土与水泥制品,2024(12):1-8. JI J F,YE M X,CAO Z G,et al.Preparation and performance study of organic-inorganic composite anti-cracking curing agent for concrete in high and low temperature environments[J].China Concrete and Cement Products,2024(12):1-8.

水化热抑制剂对水泥-粉煤灰-矿粉复合胶凝材料水化反应的影响

温东昌1，曾柯林1，杨蓉2，王雷冲2，肖勋光2

2024年第12期

摘要

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摘要：通过改变粉煤灰在矿物掺合料中的占比和水化热抑制剂（TRI）掺量，研究了TRI对水泥-粉煤灰-矿粉复合胶凝材料（复合胶材）水化过程和力学性能的影响，并通过测试TRI的吸附性能分析了其影响机理。结果表明：水泥对TRI的吸附能力最强，TRI虽能显著降低复合胶材早期水化放热速率峰值而不影响最终的水化程度，但会降低复合胶材的早期抗压强度；矿粉对TRI的吸附能力最弱，TRI对矿粉早期水化和火山灰反应的影响较小，且不影响其最终水化；粉煤灰对TRI的吸附能力相对较强，且TRI会严重影响粉煤灰的水化。 Abstract: The influence of hydration heat inhibitor(TRI) on the hydration process and mechanical properties of cement fly ash mineral powder composite cementitious materials(composite cementitious materials) was studied by changing the proportion of fly ash in mineral admixtures and the content of TRI added. The influence mechanism was analyzed by testing the adsorption performance of TRI. The results show that cement has the strongest adsorption capacity for TRI, which can significantly reduce the peak hydration heat release rate of composite cementitious materials in the early stage without affecting the final hydration degree, but will reduce the early compressive strength of composite cementitious materials. The adsorption capacity of mineral powder for TRI is the weakest, and TRI has little effect on the early hydration and volcanic ash reaction of mineral powder, and does not affect its final hydration. Fly ash has a relatively strong adsorption capacity for TRI, and TRI seriously affects the hydration of fly ash.

温东昌,曾柯林,杨蓉,等.水化热抑制剂对水泥-粉煤灰-矿粉复合胶凝材料水化反应的影响[J].混凝土与水泥制品,2024(12):9-13,28. WEN D C,ZENG K L,YANG R,et al.Effect of hydration heat inhibitor on the hydration reaction of composite cementitious materials with cement-fly ash-mineral powder[J].China Concrete and Cement Products,2024(12):9-13,28.

轻骨料预湿度对轻质UHPC性能及微观结构的影响

鄢亦斌1，2，刘开志1，2，*，高立强1，2，彭嘉华1，2，郭凯正1，2，李晨1，2

2024年第12期

摘要

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摘要：研究了黏土陶砂预湿度（预湿水量分别为0、17.1、34.2 kg/m3）对轻质超高性能混凝土（LUHPC）工作性、力学性能、体积稳定性、抗氯离子渗透性能、抗盐雾侵蚀性能、抗低温性能和抗冻性能的影响，并分析了微观机理。结果表明：对黏土陶砂进行适当的预湿处理有助于改善LUHPC的工作性、力学性能、体积稳定性能、抗氯离子渗透性能、抗盐雾侵蚀性能、抗低温性能和抗冻性能；黏土陶砂预湿处理对LUHPC性能的提升主要归因于其优化了界面过渡区及改善了C-S-H凝胶结构。 Abstract: The effects of the pre-wetting degree of clay ceramic sand(pre-wetting water content was 0, 17.1 kg/m3, and 34.2 kg/m3, respectively) on the workability, mechanical property, volume stability, chloride ion penetration resistance, salt spray corrosion resistance, low temperature resistance, and frost resistance of lightweight ultra-high performance concrete (LUHPC) were investigated, and the micro-mechanisms were analyzed. The results show that, appropriate pre-wetting treatment of clay ceramic sand can help to improve the workability, mechanical property, volume stability, chlorine ion penetration resistance, salt spray corrosion resistance, low temperature resistance and frost resistance of LUHPC. The enhancement of LUHPC performance by the pre-wetting treatment of clay ceramic sand is attributed to the optimization of the interfacial transition zone and the improvement of the C-S-H gel structure.

鄢亦斌,刘开志,高立强,等.轻骨料预湿度对轻质UHPC性能及微观结构的影响[J].混凝土与水泥制品,2024(12):14-21. YAN Y B,LIU K Z,GAO L Q,et al.Effects of pre-wetting degree of lightweight aggregate on performance and microstructure of lightweight UHPC[J].China Concrete and Cement Products,2024(12):14-21.

SAP内养护再生粗骨料自密实混凝土的性能研究

黄英杰1，张萌1，*，曹建青2，甘诗腾1，刘睿智1，温勇1

2024年第12期

摘要

引用本文

摘要：研究了SAP掺量、再生粗骨料（RCA）取代率对自密实混凝土（SCC）工作性、力学性能和收缩性能的影响规律。结果表明：SAP对SCC工作性的影响不大，而RCA取代率对SCC工作性的影响较大；当SAP掺量一定时，SCC的坍落扩展度随RCA取代率的增加而降低；当SAP掺量一定时，SCC的抗压强度、劈裂抗拉强度随RCA取代率的增加而降低；当RCA取代率为75%、100%时，SCC的抗压强度、劈裂抗拉强度相对接近；SCC的劈裂抗拉强度发展速率随RCA取代率的增加而降低；与对照组相比，掺SAP及RCA的SCC的28 d自收缩均有显著降低；当SAP掺量一定时，SCC的自收缩随着RCA取代率的增加而降低；当RCA取代率一定时，SCC的自收缩基本随着SAP掺量的增加而降低。 Abstract: The influence of SAP dosage and recycled coarse aggregate(RCA) substitution rate on the workability, mechanical properties, and shrinkage performance of self-compacting concrete(SCC) was studied. The results show that SAP has little effect on the workability of SCC, while RCA substitution rate has a greater impact on SCC workability. When the SAP dosage is constant, the slump expansion of SCC decreases with the increase of RCA substitution rate. When the SAP dosage is constant, the compressive strength and splitting tensile strength of SCC decrease with the increase of RCA substitution rate. When the RCA substitution rate is 75% and 100%, the compressive strength and splitting tensile strength of SCC are relatively close. The development rate of splitting tensile strength of SCC decreases with the increase of RCA substitution rate. Compared with the control group, the 28 d self-shrinkage of SCC doped with SAP and RCA is significantly reduced. When the SAP dosage is constant, the self-shrinkage of SCC decreases with the increase of RCA substitution rate. When the RCA substitution rate is constant, the self-shrinkage of SCC basically decreases with the increase of SAP dosage.

黄英杰,张萌,曹建青,等.SAP内养护再生粗骨料自密实混凝土的性能研究[J].混凝土与水泥制品,2024(12):22-28. HUANG Y J,ZHANG M,CAO J Q,et al.Study on the performance of SAP internal curing recycled coarse aggregate self-compacting concrete[J].China Concrete and Cement Products,2024(12):22-28.

膨胀剂对复掺粉煤灰及矿粉自密实混凝土性能的影响

杨舜太1，吕永进2，杨俊3，贺勇1，*，王聪3

2024年第12期

摘要

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摘要：研究了膨胀剂掺量（0、8%、10%、12%）对复掺粉煤灰及矿粉自密实混凝土工作性、力学性能、体积稳定性和耐久性能的影响，并分析了作用机理。结果表明：膨胀剂的掺入降低了自密实混凝土的扩展度，当膨胀剂掺量在8%~12%范围内时，其对自密实混凝土扩展度的影响较小；掺入适量膨胀剂能有效提高自密实混凝土的抗压强度和限制膨胀率，降低干燥收缩值、碳化深度和电通量；膨胀剂能与水反应，生成膨胀性结晶水化物钙矾石，适量可提高基体的密实度，补偿混凝土硬化过程中的收缩。 Abstract: The effect of the content of expansion agent(0, 8%, 10% and 12%) on the workability, mechanical property, volume stability and durability of self-compacting concrete mixed with fly ash and slag was investigated, and the action mechanism was analyzed. The results show that, the incorporation of expansion agent reduces the slump-flow of self-compacting concrete, and when the content of expansion agent is 8%~12%, it has small effect on the slump-flow of self-compacting concrete. The incorporation of appropriate content of expansion agent can effectively improve the compressive strength and restricted expansion rate, and reduce the drying shrinkage value, carbonation depth and electric flux of self-compacting concrete. Expansion agent can react with water and generate expansive hydration product ettringite, which improves the matrix compactness and compensates the shrinkage of concrete during hardening.

杨舜太,吕永进,杨俊,等.膨胀剂对复掺粉煤灰及矿粉自密实混凝土性能的影响[J].混凝土与水泥制品,2024(12):29-32,46. YANG S T,LYU Y J,YANG J,et al.Effect of the expansion agent on the performance of self-compacting concrete mixed with fly ash and slag[J].China Concrete and Cement Products,2024(12):29-32,46.

水泥-石灰石粉胶凝材料体系水化放热规律研究

朱鹏飞1，2，余熠1，*，石研然1，徐菲1，何旸1，蒋林华2，储洪强2，徐宁1，徐天磊1

2024年第12期

摘要

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摘要：研究了石灰石粉细度（比表面积分别为218、448、596 m2/kg）、水胶比（0.40、0.45、0.50）、水化温度（20 ℃、40 ℃）对胶凝材料体系水化进程的影响，并分析了石灰石粉的作用机理。结果表明：在20 ℃水化温度下，石灰石粉发挥填充、稀释、成核效应，随着石灰石粉掺量的增加，胶凝材料体系的水化放热速率峰值不断降低，诱导期结束时间基本提前；适当降低石灰石粉细度能促进胶凝材料体系的水化进程，但降低水胶比则起相反作用；适当升高水化温度可有效激发石灰石粉的水化活性，加速其火山灰效应，促进胶凝材料体系的水化进程。 Abstract: The effects of the fineness of limestone powder(specific surface area of 218, 448, 596 m2/kg, respectively), the water-binder ratio(0.40, 0.45, 0.50), and the hydration temperature(20 ℃, 40 ℃) on the hydration process of the cementitious material system were investigated, and the mechanism of the limestone powder was analyzed. The results show that, under the hydration temperature of 20 ℃, limestone powder plays the filling effect, dilution effect and nucleation effect, with the increase of the content of limestone powder, the peak value of the hydration exothermic rate of the cementitious material system decreases, and the terminal time of the induction period is basically in advance. Appropriate reduction of limestone powder fineness can promote the hydration process of cementitious material system, but reducing the water-binder ratio works in the opposite way. Appropriately elevating the hydration temperature can effectively stimulate the hydration activity of limestone powder, accelerate its volcanic ash effect, and promote the hydration process of cementitious material system.

朱鹏飞,余熠,石研然,等.水泥-石灰石粉胶凝材料体系水化放热规律研究[J].混凝土与水泥制品,2024(12):33-36. ZHU P F,YU Y,SHI Y R,et al.Study on the hydration exothermic law of cement-limestone powder cementitious material system[J].China Concrete and Cement Products,2024(12):33-36.

全固废超硫酸盐水泥稳定基层的配合比设计及施工过程质量控制

王梦梦1，魏力2，贾小龙1，3，4，李瑞杰2，5，万磊3，陈浩旭3，4，马旭东3，4

2024年第12期

摘要

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摘要：设计了全固废超硫酸盐水泥稳定材料的配合比，研究了其力学性能和耐久性能，并与水泥稳定材料进行了对比，提出了适用的施工过程质量控制方法。结果表明：制备的全固废超硫酸盐水泥稳定材料的无侧限抗压强度、抗压回弹模量、弯拉强度和间接抗拉强度均与水泥稳定材料的相当，抵抗干燥收缩的性能显著优于水泥稳定材料，这有利于实际工程中的裂缝控制；推荐采用硫酸盐SO3含量进行全固废超硫酸盐水泥稳定材料的施工过程质量控制。 The mix proportion of fully solid waste super sulfate cement stabilized material was designed, and its mechanical and durability properties were studied and compared with cement stabilized materials. Suitable construction process quality control methods were proposed. The results show that the unconfined compressive strength, compressive rebound modulus, flexural tensile strength, and indirect tensile strength of the prepared fully solid waste super sulfate cement stabilized material are comparable to those of cement stabilized material, and the resistance to drying shrinkage is significantly better than that of cement stabilized material, which is beneficial for crack control in practical engineering. It is recommended to use SO3 content in sulfate for construction process quality control of fully solid waste super sulfate cement stabilized materials.

王梦梦,魏力,贾小龙,等.全固废超硫酸盐水泥稳定基层的配合比设计及施工过程质量控制[J].混凝土与水泥制品,2024(12):37-41. WANG M M,WEI L,JIA X L,et al.Mix proportion design and construction process quality control of fully solid waste super sulfate cement stabilized base[J].China Concrete and Cement Products,2024(12):37-41.

污水处理池用大体积混凝土抗裂技术研究与应用

陈璋勇1，马安1，汪洋2

2024年第12期

摘要

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摘要：为解决南通某污水处理池大体积混凝土易开裂的问题，通过优化配合比、掺入适量抗裂剂等措施设计了抗裂混凝土，研究了抗裂混凝土的抗压强度、绝热温升、自生体积变形，并对实体结构混凝土进行了现场温度、变形监测。结果表明：掺入适量抗裂剂并适当降低水泥用量能有效改善混凝土的绝热温升和自生体积变形，且对抗压强度无太大影响；监测段混凝土各结构部位的温峰在41.6~42.1 ℃范围内，最大温升值在21.2~22.1 ℃范围内，混凝土里表温差最大值为5.8 ℃；混凝土各结构部位的变形表现为持续膨胀；在整个监测期内，监测段混凝土未出现开裂。 Abstract: In order to solve the problem of easy cracking of mass concrete in a sewage treatment pond in Nantong, anti-cracking concrete was designed by optimizing the mix proportion and adding appropriate content of anti-cracking agent. The compressive strength, adiabatic temperature rise, and self-generated volumetric deformation of the anti-cracking concrete were investigated, and the temperature and deformation of the solid structural concrete were monitored on-site. The results show that, adding appropriate content of anti-cracking agent and appropriately reducing the content of cement can effectively improve the adiabatic temperature rise and self-generated volumetric deformation of concrete, and there is no great influence on the compressive strength. The peak temperature of each structural part of the concrete of the monitored section is in the range of 41.6~42.1 ℃, and the maximum value of temperature rise is in the range of 21.2~22.1 ℃, and the maximum value of temperature difference between the surface and the interior of the concrete is 5.8 ℃. The deformation of all structural parts of the concrete exhibits continuous expansion. Throughout the monitoring period, there is no occurrence of cracks in the concrete of the monitored section.

陈璋勇,马安,汪洋.污水处理池用大体积混凝土抗裂技术研究与应用[J].混凝土与水泥制品,2024(12):42-46. CHEN Z Y,MA A,WANG Y.Research and application of anti-cracking technology of mass concrete for sewage treatment pool[J].China Concrete and Cement Products,2024(12):42-46.

补偿收缩混凝土在某大型明挖穿湖隧道工程中的应用研究

王德民1，宋长清2，姚军2，朱国军1，辜振睿1，舒震林1，张港1

2024年第12期

摘要

引用本文

王德民,宋长清,姚军,等.补偿收缩混凝土在某大型明挖穿湖隧道工程中的应用研究[J].混凝土与水泥制品,2024(12):47-50. WANG D M,SONG C Q,YAO J,et al.Application research of shrinkage-compensating concrete in a large open-cut lake-crossing tunnel project[J].China Concrete and Cement Products,2024(12):47-50.

蒸养混凝土损伤及改善措施研究综述

金清平1，陈祺1，刘勇2，高永红1，张曼2

2024年第12期

摘要

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摘要：总结了蒸养混凝土的收缩开裂、热损伤、延迟钙矾石形成三种典型损伤类型，分析了损伤作用机理。并提出了改善蒸养混凝土损伤的措施：适量掺入矿物掺合料、优化蒸养制度、合理的后续补充养护、适量掺入内养护材料SAP等。 Abstract: Three typical types of damage, namely shrinkage cracking, thermal damage, and delayed formation of ettringite in steam curing concrete are summarized. The damage mechanism is analyzed, and improvement measures for steam curing concrete damage are proposed. Moderate addition of mineral admixtures, optimization of steam curing system, reasonable subsequent supplementary curing, and appropriate addition of internal curing material SAP can all improve the damage of steam curing concrete to a certain extent.

金清平,陈祺,刘勇,等.蒸养混凝土损伤及改善措施研究综述[J].混凝土与水泥制品,2024(12):51-56. JIN Q P,CHEN Q,LIU Y,et al.Current status on damage of steam curing concrete and its improvement measures[J].China Concrete and Cement Products,2024(12):51-56.

新能源水泥基制品

机制砂UHPC的性能及其在风电塔筒管片中的应用研究

宋秋磊1，2，骆静静1，2，李梦媛3，田寅1，2，曹鑫铖1，2

2024年第10期

摘要

引用本文

摘要：为拓展超高性能混凝土（UHPC）在风电塔筒管片上的应用，开展了机制砂UHPC在风电塔筒管片中的应用研究。结果表明：在颗粒级配近似替代的原则下，采用连续级配的机制砂可制备出性能优异的UHPC，蒸汽养护48 h后，机制砂UHPC的抗压强度约172.6 MPa，抗拉强度约9.99 MPa；采用机制砂UHPC制备风电塔筒管片，虽然其早期水化放热量较大（内部温度最高可达约80 ℃），但严格控制生产工艺，可使机制砂UHPC塔筒管片表面无裂缝及其他缺陷。 Abstract: To expand the application of ultra-high performance concrete(UHPC) on wind turbine tower tube segments, the application of manufactured sand in UHPC wind turbine tower segments was studied. The results show that under the principle of approximate substitution of particle size distribution, using continuously graded manufactured sand can prepare high performance UHPC. After steam curing for 48 h, the compressive strength of UHPC is about 172.6 MPa, and the tensile strength is about 9.99 MPa. Using UHPC with manufactured sand to prepare wind turbine tower tube segments, although its early hydration heat release is relatively large(the internal temperature can reach up to about 80 ℃). However, strict control of production processes can ensure that the surface of UHPC tower tube segments with manufactured sand is free of cracks and other defects.

宋秋磊,骆静静,李梦媛,等.机制砂UHPC的性能及其在风电塔筒管片中的应用研究[J].混凝土与水泥制品,2024(10):58-63. SONG Q L,LUO J J,LI M Y,et al.Study on the performance of UHPC with manufactured sand and its application in wind turbine tower segments[J].China Concrete and Cement Products,2024(10):58-63.

风力发电机组装配式预应力混凝土塔筒疲劳承载力分析

张后禅，张祥

2024年第10期

摘要

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摘要：在设计使用年限内，风力发电机组装配式预应力混凝土塔筒的疲劳问题非常突出，尤其在塔筒1/2高度以上区域。国内标准的疲劳验算公式是基于等幅疲劳2×106次的试验研究结果，而风力发电机组混凝土塔筒的疲劳次数在3×108以上，故国内标准不适用风电机组混凝土塔筒的疲劳验算。而欧标Fib Model Code for Concrete Structures 2010（FIB规范）采用基于S-N曲线的Palmgren-Miner累积损伤方法进行混凝土疲劳验算，可以解决高次数的疲劳问题。介绍了FIB规范中混凝土塔筒常用的Ⅲ级和Ⅳ级设计方法，通过具体案例分析了混凝土塔筒疲劳承载力的影响因素。结果表明：提高混凝土强度等级和加大塔筒壁厚，可以有效提高塔筒的疲劳承载力。可为风力发电机组装配式预应力混凝土塔筒实际设计提供参考。 Abstract: During the design life, the fatigue of assembled prestressed concrete tower of wind turbine is very prominent, especially in the above 1/2 height of the tower. The fatigue checking formulas of domestic standards are based on the experimental results of 2×106 times of constant amplitude fatigue, and the fatigue times of the concrete tower of wind turbine are more than 3×108 , therefore the domestic standards are not applicable to the fatigue checking of the concrete tower of wind turbine. The fatigue checking method of Fib Model Code for Concrete Structures 2010(FIB specification) is based on Palmgren-Miner cumulative damage method and S-N curve, which can solve the high frequency fatigue problem. The commonly used Ⅲ level and Ⅳ level design method of concrete tower were introduced, and the influencing factors of fatigue capacity of concrete tower through examples were analyzed. The results show that increasing the concrete strength and increasing the thickness of tower wall can effectively improve the fatigue capacity. It can provide reference for the actual design of assembled prestressed concrete tower of wind turbine.

张后禅,张祥.风力发电机组装配式预应力混凝土塔筒疲劳承载力分析[J].混凝土与水泥制品,2024(10):64-67. ZHANG H C,ZHANG X.Fatigue capacity analysis of assembled prestressed concrete tower of wind turbine[J].China Concrete and Cement Products,2024(10):64-67.

环段吊装方案对风电混塔管片变形的影响分析

张宇豪1，2，吴香国1，3a，3b，*，陈发桥2，雍飞2，高朝利2，李博洋3a，3b，*

2024年第10期

摘要

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摘要：混凝土塔架采用预制管片通过水平和竖向节点组合而成，其组装需要现场进行吊装，吊装质量直接影响整塔的服役性能。在吊装方案中，吊钩吊点布置会导致管片受力存在差异。当环氧树脂结构胶尚未达到设计强度时，环段的整体性也未达到预期设计性态，管片起吊时由于重力影响而产生较大变形，严重时可能会导致管片的错台、崩边等工程质量问题。为了探究典型吊装工况对混塔吊装环段性态的影响，基于非线性有限元软件，以实际工程为背景，设计了3种不同的吊装工况（理想、工程、设计），研究了不同工况下混塔环段变形随吊装方式的影响。结果表明：通过调节各个吊带长度，将吊点处吊带沿多个方向布置，可使吊带内力均匀分布，从而减小管片的变形。 Abstract: The concrete tower is composed of prefabricated segments combined through horizontal and vertical joints, and its assembly requires on-site lifting. The lifting quality directly affects the service performance of the entire tower. In the lifting plan, the arrangement of hook lifting points may result in differences in the stress on the segments. When the epoxy resin structural adhesive has not yet reached the design strength, the overall integrity of the ring segment has not reached the expected design state. During the lifting of the segment, significant deformation may occur due to the influence of gravity, which may lead to engineering quality problems such as misalignment and edge collapse of the segment in severe conditions. In order to explore the influence of typical lifting conditions on the behavior of the hybrid tower lifting ring section, three different lifting cases(ideal, engineering, design) based on nonlinear finite element software and practical engineering background were designed, and the influence of the deformation of the hybrid tower ring section with the lifting solution under different working conditions were studied. The results show that by adjusting the length of each sling and arranging the sling along multiple directions at the lifting point, the internal force of the sling can be evenly distributed, thereby reducing the deformation of the pipe pieces.

张宇豪,吴香国,陈发桥,等.环段吊装方案对风电混塔管片变形的影响分析[J].混凝土与水泥制品,2024(10):68-72. WU X G,CHEN F Q,YONG F,et al.Analysis of the influence of ring lifting solution on the deformation of wind power hybrid tower segment[J].China Concrete and Cement Products,2024(10):[J].China Concrete and Cement Products,2024(10):68-72.

环形高强混凝土电杆设计方法及力学性能试验研究

韩斐1,2，马建春1,2，李占岭1,2，袁奔1,2，梁大鹏3

2024年第10期

摘要

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摘要：基于已发布实施的能源行业标准NB/T 11311—2023《环形截面混凝土电杆结构设计规程》有关高强混凝土电杆正截面受弯承载力、开裂弯矩、裂缝宽度、挠度的计算公式，对比研究了掺钢纤维、未掺钢纤维混凝土电杆的力学性能。基于结果，建议在工程计算时考虑钢纤维对混凝土电杆性能的影响，并通过试验来确定钢纤维对电杆性能的影响系数；另外，高强混凝土电杆具有占地少、施工方便、施工效率高等特点，在输配电线路中应用具有显著的技术、经济和社会效益。 Abstract: Based on the calculation formulas of bending bearing capacity of positive cross section, cracking moment, crack width, and deflection of high strength concrete poles contained in the published and implemented energy industry standard NB/T 11311—2023 Code for design of conerete pole structure with circular cross section, the mechanical properties of concrete poles with and without steel fibers are comparatively investigated. Based on the results, the effect of steel fiber on the performance of concrete poles is recommended to be considered in engineering calculations, and the influence coefficient of steel fiber on the performance of poles is determined through tests. In addition, the high strength concrete poles have the characteristics of occupying less land, convenient construction and high construction efficiency, and its application in transmission and distribution lines can generate significant technical, economic and social benefits.

韩斐,马建春,李占岭,等.环形高强混凝土电杆设计方法及力学性能试验研究[J].混凝土与水泥制品,2024(10):73-78. HAN F,MA J C,LI Z L,et al.Design method and experimental study on mechanical properties of high strength circular concrete poles[J].China Concrete and Cement Products,2024(10):73-78.

混凝土研究

基于机器学习的高温损伤后UHPC残余抗压强度预测

欧阳利军1，容文照1，谢冰清1，丁斌2

2025年第2期

摘要

引用本文

摘要：以水胶比、m硅灰/m水泥、m粉煤灰/m水泥、m石英砂/m水泥、m石英粉/m水泥、钢纤维掺量、PP纤维掺量、常温标准养护、热水养护、干热养护和加热温度11个影响因素为输入变量，建立了BP神经网络、麻雀搜索算法优化人工神经网络、遗传算法优化人工神经网络（GA-BP）和支持向量机回归四种模型，并对高温损伤后的超高性能混凝土（UHPC）残余抗压强度进行了预测。结果表明：与基于试验经验的计算模型预测结果相比，以上4个机器学习模型的预测精度较高，误差基本控制在15%以内，其中，GA-BP模型的预测结果最优，R2达到0.949。 Abstract: By using 11 influencing factors of water-cement ratio, msilica /mcement, mfly ash /mcement, msand /mcement, mquartz powder /mcement, steel fiber content, PP fiber content, room temperature standard curing, hot water curing, dry heat curing and heating temperature as input variables, four models of a BP neural network, sparrow Search Algorithm Optimized Artificial Neural Network, Genetic Algorithm Optimized Artificial Neural Network(GA-BP), and Support Vector Machine Regression were established to predict the residual compressive strength of ultra-high performance concrete(UHPC) after high temperature damage. The results show that compared with the prediction results of experimental experience calculation models, the four machine learning models have higher prediction accuracy, with an error basically within 15%. Among them, the GA-BP model has the best prediction result, with the R2 of 0.949.

欧阳利军,容文照,谢冰清,等.基于机器学习的高温损伤后UHPC残余抗压强度预测[J].混凝土与水泥制品,2025(2):1-7. OUYANG L J,RONG W Z,XIE B Q,et al.Machine learning based prediction of residual compressive strength of UHPC after high temperature damage[J].China Concrete and Cement Products,2025(2):1-7.

温度、相对湿度循环下砂浆的硫酸盐半浸泡损伤机理研究

杨枫林1，赵亚松2，陈菲2，贺知章2，高建明2，*

2025年第2期

摘要

引用本文

摘要：研究了不同温度、相对湿度条件下砂浆试件半浸泡在硫酸钠溶液中的损伤劣化规律，进行了试件的质量变化率、相对动弹性模量测试，并采用扫描电子显微镜、X射线衍射、X射线断层扫描、压汞仪法分析了硫酸盐侵蚀机理。结果表明：试件浸泡部分主要受到硫酸盐化学侵蚀，而干燥部分（未浸泡）主要受到硫酸盐物理侵蚀（膨胀）；温度循环和相对湿度循环均能加速硫酸盐侵蚀，但不改变试件损伤劣化的发展趋势；试件的质量变化率和相对动弹性模量总体上均呈先增后降的趋势；温度循环、相对湿度循环能显著影响试件中10 nm~10 μm毛细孔的孔隙率，但对凝胶孔和大孔的影响相对较小。 Abstract: The damage and deterioration laws of mortar specimens partially soaked in sodium sulfate solution under different temperature and relative humidity conditions were studied. The mass change rate and relative dynamic elastic modulus of the specimens were tested, and the sulfate corrosion mechanism was analyzed using scanning electron microscopy, X-ray diffraction, X-ray tomography, and mercury intrusion porosimetry. The results show that the partially soaked specimen is mainly subjected to sulfate chemical erosion, while the dry part(not soaked) is mainly subjected to sulfate physical erosion(expansion). Both temperature cycling and relative humidity cycling can accelerate sulfate corrosion, but do not change the development trend of specimen damage and deterioration. The overall trend of the mass change rate and relative dynamic elastic modulus of the specimens is increasing first and then decreasing. Temperature cycling and relative humidity cycling can significantly affect the porosity of 10 nm~10 μm capillary pores in the specimen, but have relatively little effect on gel pores and macropores.

杨枫林,赵亚松,陈菲,等.温度、相对湿度循环下砂浆的硫酸盐半浸泡损伤机理研究[J].混凝土与水泥制品,2025(2):8-12. YANG F L,ZHAO Y S,CHEN F,et al.Study on the damage mechanism of mortar partially soaked in sulfate under temperature and humidity cycling[J].China Concrete and Cement Products,2025(2):8-12.

成孔剂浓度对水泥基多孔材料孔结构及硬化性能的影响

宋理燃1，蒋俊1，*，曾浩伦1，卢忠远1，金超2，刘铁2，杨奉源3

2025年第2期

摘要

引用本文

摘要：采用不同掺量、不同浓度的成孔剂制备了水泥基多孔材料，通过强度测试、压汞试验、XRD、热分析、扫描电镜等方法，研究了成孔剂对水泥基多孔材料孔结构及性能的影响。结果表明：在相同成孔剂掺量下，随着成孔剂浓度的增加，试件的孔隙率减小，孔径范围变窄，累计孔容减小，平均孔径减小，抗压强度增加；当成孔剂掺量为40%时，随着成孔剂浓度的增加，试件的导热系数呈先增加后降低的趋势；当成孔剂掺量为80%时，随着成孔剂浓度的增加，试件的导热系数呈增加趋势；通过提高成孔剂浓度可调控水泥基多孔材料的力学性能和保温隔热性能。 Abstract: Cementitious porous materials were prepared using different dosages and concentrations of pore-forming agent. The effects of pore-forming agent on the pore structure and properties of cementitious porous materials were studied by using the methods of strength testing, mercury intrusion testing, XRD, thermal analysis, scanning electron microscopy. The results show that under the same dosage of pore-forming agent, as the concentration of pore-forming agent increases, the porosity of the specimen decreases, the pore size range narrowes, the cumulative pore volume decreases, the average pore size decreases, and the compressive strength increases. When the dosage of pore-forming agent is 40%, the thermal conductivity of the specimen shows a trend of first increasing and then decreasing with the increase of pore- forming agent concentration. When the dosage of pore-forming agent is 80%, the thermal conductivity of the specimen increases with the increase of pore-forming agent concentration. By increasing the concentration of pore-forming agents, the mechanical properties and thermal insulation performance of cementitious porous materials can be controlled.

宋理燃,蒋俊,曾浩伦,等.成孔剂浓度对水泥基多孔材料孔结构及硬化性能的影响[J].混凝土与水泥制品,2025(2):13-18,25. SONG L R,JIANG J,ZENG H L,et al.Influence of concentration of pore-forming agent on pore structure and hardening properties of cementitious porous material[J].China Concrete and Cement Products,2025(2):13-18,25.

杂散电流对钢筋混凝土腐蚀作用的研究现状

杨文涛

2025年第2期

摘要

引用本文

摘要：综述了杂散电流对钢筋混凝土腐蚀的基本机理和影响因素，介绍了现阶段关于杂散电流腐蚀的研究现状，总结了杂散电流目前的研究重点，并提出了当前研究存在的问题及今后杂散电流的研究方向。 Abstract: The basic mechanism and influencing factors of stray current corrosion on reinforced concrete are summarized, and the current research status on stray current corrosion is introduced. The current research focus on stray current is summarized, and some existing problems and future research directions of stray current are proposed.

杨文涛.杂散电流对钢筋混凝土腐蚀作用的研究现状[J].混凝土与水泥制品,2025(2):19-25. YANG W T.Research status of the corrosion effect of stray current on reinforced concrete[J].China Concrete and Cement Products,2025(2):19-25.

空间异形大体积混凝土水化热研究与分析

严智宇1，孔艺达2，谢皓宇3，4，凤玉波5，廖佳丽6

2025年第2期

摘要

引用本文

摘要：以某悬索桥工程为背景，建立承台、下塔柱一、二节段3个有限元模型，对该空间异形大体积混凝土进行了现场实测数据与数值仿真计算分析，并通过设置冷却水管、调整入模温度、改变温度传感器安装位置研究了大体积混凝土的水化放热过程。结果表明：布置冷却水管能够有效降低混凝土的峰值温度；降低入模温度，混凝土的峰值温度随之降低；中心位置处布置温度传感器能够较好地反应混凝土内部的温度变化情况；有限元模拟结果与实测结果吻合良好。 Abstract: Taking a suspension bridge project as the background, 3 finite element models were established for the cushion cap and the first and second sections of the lower tower column. On site measurement data and numerical simulation analysis were conducted on the space shaped mass concrete. The hydration heat release process of the mass concrete was studied by setting cooling water pipes, adjusting the mold temperature, and changing the installation position of temperature sensors. The results indicate that arranging cooling water pipes can effectively reduce the peak temperature of concrete. Lowering the molding temperature can also lower the peak temperature of the concrete. Placing a temperature sensor at the center position can effectively reflect the temperature changes inside the concrete. The finite element simulation results are in good agreement with the measured results.

严智宇,孔艺达,谢皓宇,等.空间异形大体积混凝土水化热研究与分析[J].混凝土与水泥制品,2025(2):26-31. YAN Z Y,KONG Y D,XIE H Y,et al.Research and analysis of hydration heat of space shaped mass concrete[J].China Concrete and Cement Products,2025(2):26-31.

铝酸盐水泥对粉煤灰地聚合物自密实混凝土性能的影响

马奇梅1，尹纪龙2，朱鹏瑞2，虞剑英3，薛润泽2，王亚民2，*

2025年第2期

摘要

引用本文

摘要：研究了铝酸盐水泥（CAC）对粉煤灰地聚合物自密实混凝土（FAGSCC）工作性、力学性能、微观结构的影响。结果表明：随着CAC掺量的增加，FAGSCC的工作性降低，抗压强度与劈裂抗拉强度提高，浆体与骨料的黏结强度提高，FAGSCC的微观结构致密，但延性与吸能能力下降。 Abstract: The influence of aluminate cement(CAC) on the workability, mechanical properties, and microstructure of fly ash geopolymer self-compacting concrete(FAGSCC) was studied. The results show that with the increase of CAC content, the workability of FAGSCC decreases, the compressive strength and splitting tensile strength increase, the bonding strength between slurry and aggregate increases, and the microstructure of FAGSCC becomes dense, but the ductility and energy absorption capacity decrease.

马奇梅,尹纪龙,朱鹏瑞,等.铝酸盐水泥对粉煤灰地聚合物自密实混凝土性能的影响[J].混凝土与水泥制品,2025(2):32-36. MA Q M,YIN J L,ZHU P R,et al.Influence of aluminate cement on the properties of fly ash geopolymer self-compacting concrete[J].China Concrete and Cement Products,2025(2):32-36.

SAP内养护滞留孔隙对混凝土抗冻性能的影响

刘睿智1，张萌1，2，*，胡什塔尔·尼亚孜1，曹建青3

2025年第2期

摘要

引用本文

摘要：研究了不同掺量SAP滞留孔隙对混凝土抗冻性能的影响，通过与掺引气剂的试件进行对比，分析了质量损失率、相对动弹性模量、孔隙结构特征的变化规律。结果表明：从表观损伤和质量损失率来看，S0.3%组和S0.6%组试件的抗冻性能较差，但从相对动弹性模量和孔结构特征来看，S0.3%组和S0.6%组试件的抗冻性能较REF组好；总体上，掺入SAP对试件相对动弹性模量的提高效果远大于其造成的质量损失；SAP滞留孔隙对试件冻融损伤破坏的改善效果与引气剂的作用相似，可以改善试件内部孔隙特征，从而改善混凝土的抗冻性能。 Abstract: The influence of different contents of SAP retained pores on the frost resistance of concrete was studied. By comparing with specimens containing air entraining agents, the changes in mass loss rate, relative dynamic elastic modulus, and pore structure characteristics were analyzed. The results show that in terms of apparent damage and mass loss rate, the frost resistance of specimens in the S0.3% and S0.6% groups is poor. However, in terms of relative dynamic elastic modulus and pore structure characteristics, the frost resistance of specimens in the S0.3% and S0.6% groups is better than that in the REF group. Overall, the effect of adding SAP on improving the relative dynamic modulus of elasticity of the specimens is much greater than the mass loss caused by it. The improvement effect of SAP retained pores on freeze-thaw damage and destruction of specimens is similar to that of air entraining agents, which can improve the internal pore characteristics of specimens, thus enhancing the frost resistance of concrete.

刘睿智,张萌,胡什塔尔·尼亚孜,等.SAP内养护滞留孔隙对混凝土抗冻性能的影响[J].混凝土与水泥制品,2025(2):37-41. LIU R Z,ZHANG M,HUSHITAER·N,et al.Influence of SAP internal curing retained pores on the frost resistance of concrete CAO Jianqing[J].China Concrete and Cement Products,2025(2):37-41.

水泥混凝土制品

预制UHPC雨污水检查井的设计与仿真分析

张书峰1，王蕾1，许佳波2，*，范学明3，钟诚1，田月强4

2024年第11期

摘要

引用本文

摘要：为了解决传统混凝土雨污水检查井易出现病害（如井体开裂）的问题，提出了一种预制超高性能混凝土（UHPC）雨污水检查井。通过结构设计和仿真分析对预制UHPC雨污水检查井的性能进行了评估研究，并对其制作和运输方式进行了介绍。结果表明：UHPC雨污水检查井的性能指标满足相关规范要求，受力性能较好，制作和运输方便，可为后续预制UHPC雨污水检查井的设计与应用提供参考。 Abstract: In order to solve the problem of common diseases (such as cracking of the well body) in traditional concrete sewage inspection well, a prefabricated UHPC sewage inspection well was proposed. The performance of the prefabricated UHPC sewage inspection well was evaluated and studied through structural design and simulation analysis, and its manufacturing and transportation methods were introduced. The results show that the performance indicators of UHPC sewage inspection well meet the requirements of relevant specifications, with good stress performance and convenient production and transportation, which can provide reference for the design and application of prefabricated UHPC sewage inspection well in the future.

张书峰,王蕾,许佳波,等.预制UHPC雨污水检查井的设计与仿真分析[J].混凝土与水泥制品,2024(11):39-42. ZHANG S F,WANG L,XU J B,et al.Design and simulation analysis of prefabricated UHPC sewage inspection well[J].China Concrete and Cement Products,2024(11):39-42.

环氧树脂混凝土装配式桁架下弦K型节点力学试验及有限元分析

谢新颖1，李晓峰1，金玉杰1，马杏梓2，华宇夫3

2024年第11期

摘要

引用本文

摘要：通过静力试验研究了环氧树脂混凝土装配式桁架下弦K型节点的破坏形态、承载能力和节点板的应力与应变分布情况，并进行了有限元模拟分析。结果表明：环氧树脂混凝土下弦K型节点在下弦杆靠近节点板的两侧出现5条竖直裂缝，最终节点板左侧下弦杆处的竖直裂缝前后贯通，弦杆发生拉弯破坏，节点的极限承载力为421.5 kN；有限元模拟结果与试验结果吻合较好，验证了有限元模拟的可靠性。 Abstract: The failure mode, bearing capacity, and stress and strain distribution of K-type joint under chord of epoxy resin concrete prefabricated truss were studied through static tests, and the finite element simulation analysis was conducted. The results show that there are 5 vertical cracks on both sides of the lower chord of the epoxy resin concrete K-type joint near the joint plate. Finally, the vertical cracks at the lower chord on the left side of the joint plate penetrate forward and backward, and the chord undergoes tensile and bending failure. The ultimate bearing capacity of the joint is 421.5 kN. The finite element simulation results are in good agreement with the experimental results, verifying the reliability of the finite element simulation.

谢新颖,李晓峰,金玉杰,等.环氧树脂混凝土装配式桁架下弦K型节点力学试验及有限元分析[J].混凝土与水泥制品,2024(11):43 -48. XIE X Y,LI X F,JIN Y J,et al.Mechanical test and finite element analysis of K-type joint under chord of epoxy resin concrete prefabricated truss[J].China Concrete and Cement Products,2024(11):43 -48.

纤维材料及制品

基于机器学习的超高性能混凝土性能预测

鄢亦斌1，2，刘开志1，2，*，高立强1，2，龙勇1，2，李晨2，费顺鑫3

2024年第11期

摘要

引用本文

摘要：基于改进的Andreasen-Andersen（MAA）颗粒堆积模型设计了93组UHPC配合比，根据93组样本的抗压强度与流动度建立了数据库，采用线性回归模型、二次项回归模型、人工神经网络（ANN）模型预测了UHPC的流动度和28 d抗压强度，并使用遗传算法（GA）对ANN模型进行优化得到了GA-ANN模型，最后对比了四种模型的预测精度和稳定性。结果表明：四种模型对UHPC流动度和28 d抗压强度预测精度的高低顺序为GA-ANN模型＞ANN模型＞二次项回归模型＞线性回归模型，其中，GA-ANN模型的R2分别达到了0.979和0.982。 Abstract：Based on the modified Andreasen-Andersen(MAA) particle accumulation model, 93 groups of UHPC proportions were designed, and a database was established based on the compressive strength and fluidity of the 93 groups of samples. Then the linear regression model, quadratic term regression model, and artificial neural network(ANN) model were used to predict the fluidity and the 28 d compressive strength of UHPC. And the genetic algorithm(GA) was used to optimize the ANN model to obtain the GA-ANN model. Finally, the prediction accuracy and stability of the four models were compared. The results show that, the order of accuracy of the four models in predicting the fluidity and 28 d compressive strength of UHPC is as follows: GA-ANN model ＞ ANN model ＞ quadratic term regression model ＞ linear regression model, in which the R2 of the GA-ANN model reaches 0.979 and 0.982, respectively.

鄢亦斌,刘开志,高立强,等.基于机器学习的超高性能混凝土性能预测[J].混凝土与水泥制品,2024(11):49-53,59. YAN Y B,LIU K Z,GAO L Q,et al.Performance prediction of ultra-high performance concrete based on machine learning[J].China Concrete and Cement Products,2024(11):49-53,59.

环境温度对超高韧性地聚合物复合材料抗冲击性能的影响

王圣怡1，2，李天歌1，周昱程1,2,3

2024年第11期

摘要

引用本文

摘要：研究了不同NaOH溶液浓度（8、10、12、14 mol/L）的超高韧性地聚合物复合材料（UHTGC）在常温（20 ℃）、高温（50、100、200 ℃）、低温（-20、-40、-60 ℃）环境下的抗冲击性能。结果表明：在常温环境下，随着NaOH溶液浓度的增大，UHTGC试件的抗冲击性能呈先增后降的趋势，最佳NaOH溶液浓度为12 mol/L；在高温环境下，随着NaOH溶液浓度的增大，UHTGC试件的抗冲击性能不断提高，当NaOH溶液浓度为14 mol/L时，UHTGC试件的峰值冲击荷载和冲击耗能均相对最大；在低温环境下，随着NaOH溶液浓度的增大，UHTGC试件的峰值冲击荷载呈先增后降的趋势，冲击耗能呈增大趋势，另外，随着低温温度的降低，UHTGC试件的冲击耗能逐渐增大。 Abstract: The impact resistance of ultra-high toughness geopolymer composites(UHTGC) with different concentrations(8, 10, 12, 14 mol/L) of NaOH solution at room temperature(20 ℃), high temperature(50, 100, 200 ℃), and low temperature(-20, -40, -60 ℃) environments was investigated. The results show that, at room temperature environment, with the increase of the concentration of NaOH solution, the impact resistance of UHTGC specimens shows a tendency of first increasing and then decreasing, and the optimal concentration of NaOH solution is 12 mol/L. At high temperature environment, with the increase of the concentration of NaOH solution, the impact resistance of UHTGC specimens is improved, and when the concentration of NaOH solution is 14 mol/L, the peak impact load and impact energy consumption of UHTGC specimens are relatively largest. At low temperature environment, with the increase of the concentration of NaOH solution, the peak impact load of UHTGC specimen shows a tendency of first increasing and then decreasing, and the impact energy consumption of UHTGC specimen shows a tendency of increasing. In addition, with the decrease of the low temperature, the impact energy consumption of UHTGC specimen increase gradually.

王圣怡,李天歌,周昱程.环境温度对超高韧性地聚合物复合材料抗冲击性能的影响[J].混凝土与水泥制品,2024(11):54-59. WANG S Y,LI T G,ZHOU Y C.Effect of environmental temperature on the impact resistance of ultra- high toughness geopolymer composites[J].China Concrete and Cement Products,2024(11):54-59.

纳米纤维对钢纤维-UHPC基体界面黏结性能的影响

吉世林

2024年第11期

摘要

引用本文

摘要：研究了钢纤维（SF）埋置深度（5、10、15、20 mm）、碳纳米管（CNTs）掺量（0.1%、0.2%、0.3%、0.4%）、碳酸钙晶须（CAS）掺量（1%、2%、3%、4%）对SF-UHPC基体界面黏结性能的影响，并进行了微观机理分析。结果表明：随着SF埋置深度的增加，拉拔峰值荷载和SF-UHPC基体的拉拔能均呈增大趋势，但界面黏结强度呈降低趋势；CNTs的掺入虽降低了SF-UHPC基体的拉拔能，但适量CNTs可提升拉拔峰值荷载和SF-UHPC基体的界面黏结强度；掺入适量CAS可显著改善SF-UHPC基体的界面黏结性能；相较于CNTs，CAS对SF-UHPC基体界面黏结性能改善效果相对更好。 Abstract: The effects of the embedment depth(5, 10, 15, 20 mm) of steel fiber(SF), the content(0.1%, 0.2%, 0.3%, 0.4%) of carbon nanotube(CNTs) , and the content(1%, 2%, 3%, and 4%) of calcium carbonate crystal whisker(CAS) on the interfacial bonding performance of SF-UHPC matrix were investigated, and the micromechanisms analysis was conducted. The results show that, with the increase of the embedment depth of SF, the peak pull-out load and the pull-out energy of SF-UHPC matrix show an increasing trend, but the interfacial bonding strength shows a decreasing trend. Although the incorporation of CNTs reduces the pull-out energy of SF-UHPC matrix, the peak pull-out load and the interfacial bonding strength of SF-UHPC matrix can be improved with the appropriate content of CNTs. The incorporation of appropriate content of CAS can significantly improve the interfacial bonding performance of SF-UHPC matrix. Compared with CNTs, CAS has a relatively better improvement effect on the interfacial bonding performance of SF-UHPC matrix.

吉世林.纳米纤维对钢纤维-UHPC基体界面黏结性能的影响吉世林[J].混凝土与水泥制品,2024(11):60-64,69. JI S L.Effect of nano-fiber on interfacial bonding performance of steel fiber-UHPC matrix[J].China Concrete and Cement Products,2024(11):60-64,69.

房建材料及制品

应变硬化水泥基复合材料增强钢筋混凝土构件受弯性能试验研究

侯昌明1，张朔1，陈晓1，杨智峰1，张永兴2，*

2024年第11期

摘要

引用本文

摘要：设计了1组钢筋混凝土梁构件（RC）和3组应变硬化水泥基复合材料增强钢筋混凝土梁构件（U-10、U-30、U-50），研究了应变硬化水泥基复合材料层厚度（0、10、30、50 mm）对构件受弯性能的影响。结果表明：与RC构件相比，U-10、U-30和U-50构件的承载能力分别提高了16.5%、34.8%和61.0%；在加载过程中，纵向钢筋先屈服，然后应变硬化水泥基复合材料增强层开始承担荷载，且增强层表面出现众多细小裂缝，此后，部分细小裂缝局部化，增强层韧性逐渐丧失，承载能力下降，并最终保持与钢筋混凝土基梁一致。 Abstract: One set of reinforced concrete beam components(RC) and three sets of strain hardened cementitious composite material strengthening reinforced concrete beam components(U-10, U-30, U-50) were designed, and the effects of strain hardened cementitious composite material layer thickness(0, 10, 30, 50 mm) on the bending performance of components were investigated. The results show that compared with RC components, the bearing capacity of U-10, U-30, and U-50 components are increased by 16.5%, 34.8%, and 61.0%, respectively. During the loading process, the longitudinal steel bars yield first, and then the strain hardened cementitious composite reinforcement layer begins to bear the load, and numerous small cracks appear on the surface of the reinforcement layer. Afterwards, some of the small cracks localize, and the toughness of the reinforcement layer gradually decreases, resulting in a decrease in bearing capacity and ultimately maintaining consistency with the reinforced concrete foundation beam.

侯昌明,张朔,陈晓,等.应变硬化水泥基复合材料增强钢筋混凝土构件受弯性能试验研究[J].混凝土与水泥制品,2024(11):65-69. HOU C M,ZHANG S,CHEN X,et al.Experimental study on bending performance of strain hardening cementitious composite material strengthening reinforced concrete components[J].China Concrete and Cement Products,2024(11):65-69.

纤维素醚对石膏基自流平砂浆性能的影响研究

张明涛1，王泽萍1，唐晗1，赵敏2，*，李鑫1，古富鹏1，张静文1

2024年第11期

摘要

引用本文

张明涛,王泽萍,唐晗,等.纤维素醚对石膏基自流平砂浆性能的影响研究[J].混凝土与水泥制品,2024(11):70-74. ZHNAG M T,WANG Z P,TANG H,et al.Study of the effect of cellulose ether on the properties of gypsum-based self-leveling mortar[J].China Concrete and Cement Products,2024(11):70-74.

标准解读

JC/T 2723—2022《预应力混凝土实心方桩》标准解读

蒋元海

2023年第4期

摘要

引用本文

为便于 JC/T 2723—2022《预应力混凝土实心方桩》的使用方准确理解标准条款的具体含义，正确贯彻实施标准条款的具体要求和规定，简述了该标准的编制背景、编制目的和意义，解释说明了标准条文的具体内容，并指出了标准实施过程中应注意的事项。 In order to facilitate the user of JC/T 2723—2022 Prestressed Concrete Solid Square Pile to accurately understand the specific meaning of the standard terms and correctly implement the specific requirements and provisions of the standard terms, the preparation background, purpose and significance of the JC/T 2723—2022 are briefly described, the specific contents of the standard provisions are explained in detail, and the problems that should be paid attention to in the implementation process are put forward.

蒋元海.JC/T 2723—2022《预应力混凝土实心方桩》标准解读[J].混凝土与水泥制品,2023(4):81-84. JIANG Y H.Interpretation on JC/T 2723—2022 Prestressed Concrete Solid Square Pile[J].China Concrete and Cement Products,2023(4):81-84.

检测及试验方法研究

灌浆料测强曲线对龄期与抗压强度的适用性研究

赵建华1，谢慧晟2，张建宇1，凌良建2，周红燕3，吕嘉2

2023年第4期

摘要

引用本文

选择不同灌浆料制作了标准试件和模拟孔道PVC管试件，根据DB32/T 3754—2020《装配整体式混凝土结构检测技术规程》的要求，基于标准试件的抗压强度和模拟孔道PVC管试件的表面硬度建立了灌浆料测强曲线，分析了测强曲线对灌浆料龄期和抗压强度的适用性。结果表明：在灌浆料龄期≥14 d或抗压强度≥60 MPa的情况下，采用DB32/T 3754—2020中的方法建立的灌浆料测强曲线的适用性更强，可为实际工程中不同灌浆料实体抗压强度检测时间的选取提供参考。 Different sleeve grouting materials were selected to make standard test pieces and PVC pipe test pieces with simulated channels. According to the requirements of DB32/T 3754—2020 Technical Specification for Inspection of Monolithic Precast Concrete Structure, the strength curve of the grouting material was established based on the compressive strength of standard test pieces and the surface hardness of PVC pipe test pieces with simulated channels, and the applicability of the strength curve to the age and compressive strength was analyzed. The results show that when the age of grouting material is ≥14 days or the compressive strength of grouting material is ≥60 MPa, the strength test curve of grouting material established by the method in DB32/T 3754—2020 is more applicable, which can provide a reference for the selection of the testing time of the solid compressive strength of different grouting materials in practical projects.

赵建华,谢慧晟,张建宇,等.灌浆料测强曲线对龄期与抗压强度的适用性研究[J].混凝土与水泥制品,2023(4):85-87,92. ZHAO J H,XIE H S,ZHANG J Y,et al.Study on the Applicability of Grouting Material Strength Curve to Age and Compressive Strength[J].China Concrete and Cement Products,2023(4):85-87,92.

节能降碳

偏高岭土对碱矿渣水泥耐高温性能的影响

吕淑莲1，雷华2，程臻赟2，*

2024年第11期

摘要

引用本文

摘要：对比研究了不同掺量的偏高岭土（0、10%、30%）对碱矿渣水泥在20~1 000 ℃高温作用下的外观形貌和抗压强度的影响，并进行了XRD、FT-IR和SEM分析。结果表明：当温度不大于400 ℃时，不同偏高岭土掺量试件的外观形貌和抗压强度均无明显变化；当温度升至600 ℃时，体系中的水化产物C-S-(A)-H凝胶脱水，试件内部结构出现微裂纹，抗压强度下降，但掺入适量偏高岭土能在一定程度上减少抗压强度损失；当温度达到1 000 ℃时，未掺偏高岭土试件的固相反应产物主要为钙黄长石晶体颗粒，且颗粒之间较为松散，微观结构密实度较低，而掺偏高岭土试件的固相反应产物主要为钠长石，微观结构呈空间网状，密实度较高，耐高温性能相对较好。 Abstract: A comparative study was conducted on the effects of different contents of metakaolin(0, 10%, 30%) on the appearance and compressive strength of alkali activated slag cement under high temperature conditions of 20~1 000 ℃, and XRD, FT-IR, and SEM analyses were conducted. The results show that when the temperature is not greater than 400 ℃, there is no significant change in the appearance and compressive strength of specimens with different metakaolin content. When the temperature rises to 600 ℃, the hydration product C-S-(A)-H gel in the system will be dehydrated, and the internal structure of the specimen will appear microcracks, reducing the compressive strength. However, the compressive strength loss can be reduced to a certain extent by adding appropriate content of metakaolin. When the temperature reaches 1 000 ℃, the solid reaction product of the specimen without metakaolin is mainly calcium feldspar crystal particles, and the particles are relatively loose with low microstructure density. On the other hand, the solid reaction product of the specimen with metakaolin is mainly sodium feldspar, with a spatial network structure, high density, and relatively good high temperature resistance.

吕淑莲,雷华,程臻赟.偏高岭土对碱矿渣水泥耐高温性能的影响[J].混凝土与水泥制品,2024(11):100-105. LYU S L,LEI H,CHENG Z Y.Effect of metakaolin on high temperature resistance of alkali activated slag cement[J].China Concrete and Cement Products,2024(11):100-105.

沙漠砂-粗骨料UHPC配合比设计及性能研究

马熙伦，罗永，沙东*，杨傲雄，唐梓轩

2024年第11期

摘要

引用本文

摘要：采用沙漠砂和粗骨料复配大掺量替代石英砂制备了超高性能混凝土（UHPC），通过正交试验研究了水胶比（0.16、0.18、0.20）、沙漠砂掺量（20%、40%、60%）、钢纤维掺量（1%、2%、3%）和粗骨料掺量（10%、20%、30%）对UHPC流动性和抗压强度的影响，并与未掺沙漠砂和粗骨料的基准组进行了对比。结果表明：沙漠砂-粗骨料UHPC的最佳配合比组合为水胶比0.16、沙漠砂掺量40%、钢纤维掺量2%、粗骨料掺量20%，此时，UHPC试件的28 d抗压强度较基准组提高了5.8%，流动度较基准组降低了10.4%，但流动度仍满足相关规范要求。 Abstract: Ultra-high performance concrete(UHPC) was prepared by replacing quartz sand with a large amount of the combination of desert sand and coarse aggregates. The effects of water-cement ratio(0.16, 0.18, 0.20), desert sand content (20%, 40%, 60%), steel fiber content(1%, 2%, 3%), and coarse aggregate content(10%, 20%, 30%) on the flowability and compressive strength of UHPC were studied through orthogonal experiments, and compared with the reference group without desert sand and coarse aggregates. The results show that the optimal mix proportion combination of desert sand-coarse aggregate UHPC is the water-cement ratio of 0.16, desert sand content of 40%, steel fiber content of 2%, and coarse aggregate content of 20%. At this time, the 28 d compressive strength of UHPC specimens increases by 5.8% compared to the reference group, and the flowability decreases by 10.4% compared to the reference group, but the flowability still meets the requirements of relevant specifications.

马熙伦,罗永,沙东,等.沙漠砂-粗骨料UHPC配合比设计及性能研究[J].混凝土与水泥制品,2024(11):106-110. MA X L,LUO Y,SHA D,et al.Research on mix proportion design and performance of desert sand- coarse aggregate UHPC[J].China Concrete and Cement Products,2024(11):106-110.

再生微粉对再生混凝土力学性能的影响

刘诚1，2，白希选1，2，*，王相卿1，2

2024年第11期

摘要

引用本文

摘要：研究了再生微粉等质量取代0、5%、10%、15%、20%的水泥对再生混凝土抗压强度，劈裂抗拉强度和弹性模量的影响，并进行了XRD和SEM分析。结果表明：随着再生微粉掺量的增加，试件各龄期的抗压强度、劈裂抗拉强度和弹性模量基本呈先增大后减小的趋势，最佳掺量为15%；再生微粉具有一定的火山灰活性和填充效应，适量掺入可以有效改善再生混凝土的界面过渡区结构，使其更加致密。 Abstract: The effects of replacing 0, 5%, 10%, 15%, and 20% cement with recycled powder on the compressive strength, splitting tensile strength, and elastic modulus of recycled concrete were studied, and the XRD and SEM analysis were conducted. The results show that with the increase of the content of recycled powder, the compressive strength, splitting tensile strength, and elastic modulus of the specimens at each age show a trend of first increasing and then decreasing, and the optimal content is 15%. Recycled powder has certain volcanic ash activity and filling effect, and moderate addition can effectively improve the interface transition zone structure of recycled concrete, making it denser.

刘诚,白希选,王相卿.再生微粉对再生混凝土力学性能的影响[J].混凝土与水泥制品,2024(11):111-114,120. LIU C,BAI X X,WANG X Q.Effects of recycled powder on mechanical properties of recycled concrete[J].China Concrete and Cement Products,2024(11):111-114,120.

建筑垃圾再生骨料的特性及改性方法研究进展

李克青1，齐国强1，曹芳菲2，刘学刚1，王富华1，吴譞1，刘晓坤1，王松魁1，张冀伟1

2024年第11期

摘要

引用本文

摘要：从黏附砂浆、界面过渡区、裂纹损伤这3个方面介绍了建筑垃圾再生骨料（RCA）的特性，并分析了RCA对混凝土性能的影响。基于此，总结了近年来常见的建筑垃圾再生骨料改性方法，如酸化改性、化学浆液改性、纳米技术改性、碳化改性、微生物矿化改性、复合技术改性等，并分析了其改性机理，可为建筑垃圾资源化利用和再生骨料的性能提升研究提供参考。 Abstract: The characteristics of construction waste recycled aggregates(RCA) from the aspects of adhesive mortar, interface transition zone, and crack damage are introduced, and the influence of RCA on performance of concrete is analyzed. Based on this. The common modification methods of construction waste recycled aggregates in recent years are summarized, such as acidification modification, chemical slurry modification, nanotechnology modification, carbonization modification, microbial mineralization modification, composite technology modification, etc. The modification mechanism is analyzed, which can provide a reference for the resource utilization of construction waste and the performance improvement of recycled aggregates.

李克青,齐国强,曹芳菲,等.建筑垃圾再生骨料的特性及改性方法研究进展[J].混凝土与水泥制品,2024(11):115-12. LI K Q,QI G Q,CAO F F,et al.Research progress on characteristics and modification methods of construction waste recycled aggregates[J].China Concrete and Cement Products,2024(11):115-12.

读者之友

《混凝土与水泥制品》“3D打印混凝土”与“节能利废混凝土”专题征稿启事

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珊瑚碎屑混凝土的强度特性及破坏形态分析

王磊1,2，范蕾1,2

2015年第1期

摘要

引用本文

摘要：针对目前对珊瑚碎屑混凝土的力学机理尚不清晰这一问题，对不同龄期和水灰比的珊瑚混凝土试块进行了试验研究。试验结果表明，珊瑚混凝土具有早强、快硬的特点；同时，当水灰比减小到一定程度后，单纯减小水灰比并不能明显提高珊瑚混凝土的抗压强度。本文从材料特性、界面特性以及龄期和水灰比等方面着手，对珊瑚混凝土的强度特性作了详细分析，并介绍了珊瑚混凝土的破坏形态，从而可为珊瑚碎屑应用于海岛混凝土工程提供一定的参考依据。 Abstract: Currently, the mechanical mechanism of coral debris concrete is not well understood, so the research on coral concrete test block in different age and water cement ratio is carried out. The test results show that coral concrete has the characteristics of fast strengthening and hardening, and when the water cement ratio decreases to a certain extent, simply reducing the water cement ratio could not result in obvious additions of compressive strength of coral concrete. From the aspects of material properties, interface properties，age and water cement ratio, the strength characteristics of the coral concrete are analyzed in detail, and the failure pattern is introduced, which can provide reference for application of coral debris in island concrete engineering.

王磊,范蕾. 珊瑚碎屑混凝土的强度特性及破坏形态分析[J].混凝土与水泥制品,2015(1):1-4. WANG L,FAN L.Strength Characteristic and Failure Pattern Analysis on Coral Debris Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(1):1-4.

装配式结构用高强套筒灌浆料性能试验研究

汪秀石，杨智良，吴照学

2015年第2期

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摘要：研究了装配式结构用高强套筒灌浆料的性能，通过试配并进行了流动度、强度和膨胀性试验，优选出了优化配合比。同时基于优化配合比进行了水胶比、减水剂掺量和膨胀剂掺量对高强套筒灌浆料性能影响的研究。试验结果表明，随着水胶比（W/B）增加，流动度逐渐增大，但强度随W/B增加呈现明显降低趋势；减水剂可有效改善流动度，而当掺量过多时对强度有一定的影响；膨胀率随膨胀剂掺量增加呈现增长趋势，但当掺量小于8.0%时，膨胀效果较差，掺量大于12.0%时，对流动度和强度产生不利影响。 Abstract: The properties of high-strong cementitious grout for prefabricated concrete structure are studied, and the optimum mix proportion is elected by the tests of fluidity, strength and expansibility. The roles of W/B and the content of superplasticizer or expanders in high-strong cementitious grout for coupler are researched respectively based on the optimum mix proportion. The test results show that the fluidity of the grout increases with the increasing of W/B, but its strength has significantly decreasing trend; the fluidity of the grout can be improved effectively by superplasticizer, but its strength will decrease if superplasticizer content is excessive; expansion rate of the grout increases with the increasing of expanders agent content, but the expansibility is poor when the content is less than 8.0%, and it has an adversely affect on the liquidity and strength of the grout when the content is greater than 12.0%.

汪秀石,杨智良,吴照学.装配式结构用高强套筒灌浆料性能试验研究[J].混凝土与水泥制品,,2015(2):65-68. WANG X S,YANG Z L,WU Z X.Experimental Research on Performance of High-strong Cementitious Grouting for Prefabricated Concrete Structure[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(2):65-68.

再生粗骨料强化处理工艺对再生混凝土性能的影响

郭远新，李秋义，孔哲，岳公冰，韩帅

2015年第6期

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摘要：分别采用物理强化、化学强化和物理-化学复合强化三种不同的强化方式对简单破碎再生粗骨料进行强化处理，并采用100%取代天然碎石制备再生粗骨料混凝土，研究了不同强化处理后的再生粗骨料对混凝土工作性能、力学性能、抗渗透性能和抗碳化性能的影响。结果表明，经过强化处理的再生粗骨料混凝土的各项性能均有不同程度的提高，其中经二次物理强化处理后的再生粗骨料混凝土的用水量较天然碎石混凝土仅增加了6kg/m3，其抗压强度也达到最高值，接近于天然碎石混凝土；经二次物理强化和化学浸渍复合强化处理后的再生混凝土氯离子扩散系数降低了13.6%；三种不同的强化方式处理后，再生混凝土的碳化深度和碳化速度均有所降低。 Abstract: Three kinds of different strengthening technologies of physical enhancement, chemical enhancement and physical-chemical compound enhancement to strengthen the simple crushing recycled coarse aggregate are adopted, with 100% replaced natural gravel preparation of recycled coarse aggregate concrete, and the influences of the recycled coarse aggregate of different strengthening treatment on the working performance, mechanical properties, penetration resistance and carbonation resistance of concrete are studied. The research results show that, through strengthening treatment, recycled coarse aggregate concrete properties are improved to different degrees, the water consumption of recycled coarse aggregate concrete after the secondary physical strengthen treatment is only increased by 6kg/m3 than that of natural gravel concrete. The compressive strength also reached the highest value, close to the natural gravel concrete. The chloride ion diffusion coefficient of recycled concrete after the secondary physical-chemical compound strengthening treatment is reduced by 13.6%. The depth of carbonation and carbonation velocity decrease after three kinds of different strengthening treatments.

郭远新,李秋义,孔哲,等.再生粗骨料强化处理工艺对再生混凝土性能的影响[J].混凝土与水泥制品,2015(6):11-17. GUO Y X,LI Q Y,KONG Z,et al.Influence of Strengthening Treatment Technology of Recycled Coarse Aggregate on Performance of Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(6):11-17.

无砂再生透水混凝土配合比设计

张松涛1，贾欣悦2，宋卓1，贾艳东1

2016年第12期

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张松涛,贾欣悦,宋卓,等.无砂再生透水混凝土配合比设计[J].混凝土与水泥制品,2016(12):6-12. ZHANG S T,JIA X Y,SONG Z,et al.Design on Mix Proportion of No-fines Pervious Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2016(12):6-12.

清水混凝土概念、研究现状、存在问题及配合比设计方综述

郭伟1，路林海2，王龙志3，崔鑫3，王桂玲4，张海霞3

2016年第10期

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摘要：20世纪90年代后期以来，清水混凝土研究及工程应用得到了长足发展，许多城市建成了清水混凝土标志性工程。为了更好地促进清水混凝土研究的深入、工程质量的提高，对清水混凝土的概念、研究现状、存在问题及现有的清水混凝土配合比设计方法进行了系统地梳理、总结。通过对清水混凝土现状的研究，可使相关领域技术人员认识到清水混凝土发展中存在的不足、明确清水混凝土的研究方向，以实现清水混凝土技术研究水平的再提高，有力地支持清水混凝土工程应用的进一步推广。 Abstract: Since the late 1990s, research and application of fair-faced concrete has made considerable progress, many cities built landmark projects of fair-faced concrete. In order to better promote the study in-depth and the engineering quality improvement of fair-faced concrete, the concept, research status, existing problems and mixture design methods of fair-faced concrete are systematically reviewed and summarized. Through the above study of fair-faced concrete, the relevant technicians recognize the lack of fair-faced concrete in the development and realize a clear research direction, in order to improve research level, strongly support further promotion of fair-faced concrete in engineering applications.

郭伟,路林海,王龙志,等.清水混凝土概念、研究现状、存在问题及配合比设计方法综述[J].混凝土与水泥制品,2016(10):23-27. GUO W,LU L H,WANG L Z,et al.Summary for Concept, Research Status, Existing Problems and Mix Proportion Design of Fair-faced Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2016(10):23-27.

新型装配式建筑构件生产及其施工技术的研究与应用

范玉1,4，徐华2，黄新3，黄继战4，马北京4

2015年第12期

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摘要：通过对建筑PC构件的设计、生产、施工进行的研究，对建筑PC构件进行了再设计及优化，确定了合理的PC构件生产及其施工工艺方案，并对影响PC构件质量的相关因素进行了分析。 Abstract: Through the research on design of PC component, production and construction, construction PC component is carried out for re-design and optimization. The reasonable PC component production and construction technology program are determined, and factors affecting the quality of PC are analyzed.

范玉,徐华,黄新,等.新型装配式建筑构件生产及其施工技术的研究与应用[J].混凝土与水泥制品,2015(12):87-89. FAN Y, XU H,HUANG X,et al.Research and Application of Production for New Type of Prefabricated Construction Component and Its Construction Technology[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(12):87-89.

石墨烯纳米片对水泥基复合材料力学性能的影响

王辉，刘爱红，李航

2015年第12期

摘要

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摘要：采用球磨法将石墨烯纳米片分散在水泥基体中，研究了石墨烯纳米片掺量对水泥基材料抗折强度和抗压强度的影响。实验结果表明，适量的石墨烯纳米片可均匀分散在水泥基体中，通过桥联效应和拔出效应对水泥基材料起增强增韧作用，当石墨烯纳米片掺量为0.04%时，石墨烯纳米片与水泥基体界面结合良好，没有明显过渡层，试件3d抗折强度和抗压强度分别提高了22.84%和23.61%。 Abstract: Graphene nanoplatelets (GNPs) were dispersed in the cement matrix by milling method. The effect of GNPs with different contents on the flexural strength and compressive strength of composites were studied. The results showed that well dispersed GNPs improved the mechanical properties of cement composites, owing to GNPs excellent pulling-out and bridging capability. When the GNPs content was 0.04%, the mechanical properties of cement composites were increased obviously. Its flexural and compressive strength increased by 22.84% and 23.61% respectively compared with the referee sample after curing 3 days. The interface between graphene nanoplatelets and cement was bonded well, with no obvious transition layer.

王辉,刘爱红,李航.石墨烯纳米片对水泥基复合材料力学性能的影响[J].混凝土与水泥制品,2015(12):25-27. WANG H,LIU A H,LI H.Influence of Graphene Nanoplatelets on Mechanical Properties of Cement-based Composites[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(12):25-27.

大型智能PC构件自动化生产线简介

孙红1，孙健1，吴玉厚1，赵凯军2

2015年第3期

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摘要：根据混凝土工厂化生产的需要，阐述了大型智能PC构件生产线的组成部分、工艺过程和技术重点；分析了该生产线中蕴含的微观物流、信息采集、分布式控制及多智能体的协同过程，总结了PC构件生产线的优点和技术创新突破点，可为大型智能PC构件全自动生产线的研制提供理论基础和技术依据。 Abstract: According to the needs of the concrete factory production, the large scale intelligent automatic PC production line the technological process and technical keys of PC component are introduced, the cooperative process of microscopic logistics, information acquisition, distributed control and multi-agent systems are analyzed, the advantages and technology innovation of PC components production line are summarized, which can provide theoretical basis and technical basis for large scale intelligent automatic production line of PC components.

孙红,孙健,吴玉厚,等.大型智能PC构件自动化生产线简介[J].混凝土与水泥制品,2015(3):45-48. SUN H,SUN J,WU Y H,et al.Introduction of Large Scale Intelligent PC Automatic Production Line[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(3):45-48.

建筑垃圾再生微粉的研究现状

毛新奇1,2，屈文俊1，朱鹏1

2015年第8期

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摘要：建筑垃圾再生微粉各项性能的研究是推进建筑垃圾资源化的重要基础。根据近年来国内关于再生微粉的主要研究成果，对材料来源、制备工艺、工作性能、力学性能和耐久性能等方面进行了综述，并对相关的影响因素进行了探讨分析。 Abstract: Research on the properties of utilization regeneration of powder for construction waste is the important foundation of resource utilization of construction waste. Based on the recent domestic research on recycled powder, material source, manufacturing process, workability, mechanical properties and the durability are reviewed. Besides, the related influence factors are discussed and analyzed.

毛新奇,屈文俊,朱鹏.建筑垃圾再生微粉的研究现状[J].混凝土与水泥制品,2015(8):89-93. MAO X Q,QU W J,ZHU P.Study Status of Recycled Powder for Construction Waste[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(8):89-93.

再生粗骨料及再生混凝土性能研究进展

甘福1，周脉席1,3，濮琦2

2018年第9期

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摘要：结合国内外再生粗骨料混凝土的研究现状，综述了再生粗骨料性能、再生粗骨料混凝土性能、再生混凝土改性方法及改性后的混凝土性能等方面内容，展望了再生粗骨料及再生混凝土未来研究方向。 Abstract: Combining the study of recycled coarse aggregate concrete at home and abroad, the property of recycled coarse aggregate, the performance of recycled coarse aggregate concrete, the modified method of recycled concrete and the performance of modified concrete are reviewed, and the fature research direction on recycled coarse aggregate and recycled concrete is prospected.

甘福,周脉席,濮琦.再生粗骨料及再生混凝土性能研究进展[J].混凝土与水泥制品,2018(9):102-107. GAN F,ZHOU M X,PU Q.Research Progress of Performance of Recycled Coarse Aggregate and Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2018(9):102-107.

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